Clear The Air News Blog Rotating Header Image

Diesel

‘Yellow-Label’ Cars Face Ban in Beijing

‘Yellow-label’ cars face ban from city in green drive

Zhuang Pinghui – SCMP – Updated on Oct 03, 2008

Beijing will phase out polluting vehicles known as “yellow-label” cars over the next year in a bid to improve the capital’s notoriously poor air quality.

Beijing issues yellow labels to cars whose emission levels fail to meet Euro I standards and green labels to those that do. The city has around 357,000 yellow-label vehicles; most are heavy trucks. Most domestic vehicles manufactured before 1996 or imported ones manufactured before 1998 are in the yellow category.

Xinhua reported that municipal authorities ordered all yellow-label government vehicles off the road from Monday and those involved in ancillary services, such as refuse transport, replaced within a year.

From January 1, all yellow-label vehicles, except those involved in food supplies and refuse transport, will be banned within the Fifth Ring Road. The ban will extend to the Sixth Ring Road, close to the boundary with Hebei province, on October 1 next year.

Xinhua said yellow-label vehicles accounted for only 10 per cent of the total in Beijing but were responsible for more than half of total vehicle emissions.

Traffic control measures, including daylight bans on yellow-label cars, were implemented for the Olympics and the Paralympics to ensure improved air quality.

The report cited a Tsinghua University survey as saying during the Olympic period pollutants from vehicles had declined by 30 to 40 per cent.

It quoted Beijing Environmental Protection Bureau official Feng Yuqiao as saying that nighttime air pollution levels were 15 to 20 per cent higher than in the day mainly because of the yellow-label vehicles coming into the city in the evening.

The ban on the polluting vehicles is part of a series of post-Olympics car restrictions that take effect this month in the hope of sustaining smooth traffic and good air quality after the Games.

Under the new traffic restrictions from October 11, 30 per cent of government vehicles will be garaged and the remainder of government vehicles and private cars will take turns on the roads on weekdays depending on their number plates.

The ban will apply from 6am to 9pm for private cars and around the clock for government and corporate vehicles. It is expected to cut Beijing’s average traffic flow by 6.5 per cent and speed up traffic within the Fifth Ring Road by 8 per cent.

Cutting Back Buses To Improve Air

Cutting back buses to improve air only encourages more cars

Updated on Sep 29, 2008 – SCMP

The Hong Kong government has for the past few years been keen to reduce the number of buses entering busy streets, because buses with diesel engines contribute to the city’s serious air pollution problem.

As I have observed, however, this policy has proved to be seriously flawed.

Reducing the number of buses in busy areas means reducing the number of public transport options available to people wanting to go into and out of these areas.

Also, it has become apparent that the public transport services available in these areas have become increasingly unable to meet the rising demand brought about by new commercial developments.

Anyone travelling on the MTR in peak hours will notice that the network has become much more congested.

Moreover, when the number of buses is reduced, residents in remote areas with no rail services are almost always the ones to suffer.

Due to the absence of direct bus routes running between these newly-developed remote districts and urban areas, commuters will have to pay for feeder services to the rail stations at their own expense.

This inconvenience has thus far discouraged many residents of Tin Shui Wai, dubbed the “city of sadness”, from finding jobs in the urban areas.

Ironically, owners of new private housing developments that have been built around new railway stations are often investors who do not actually live in those apartments, or car owners who seldom travel by rail.

Another recent case in point is the rerouting of the only all-day bus that ran between Ma Tau Wai and the Star Ferry, which was always full of passengers. It was originally designed to reduce the number of buses in Tsim Sha Tsui.

At a time when rail services have yet to cover most of Hong Kong, the reduction in bus services will only serve to make Hong Kong’s public transport less efficient and encourage more people to switch to private cars.

Charles Lieou, Sha Tin

Polluting Vehicles Must Be Driven Off The Road

Updated on Sep 27, 2008 – SCMP

We are accustomed to much talk about air pollution, but not enough action. The latest example is to be found in the Environmental Protection Department’s proposal to raise licence fees for owners of old, polluting commercial vehicles who do not switch to cleaner models. That sounds tough until you consider it is subject to discussion with the owners – and compare it with the compulsory phasing out of such vehicles in countries that adopt more stringent measures to improve air quality.

Roadside pollution is a major factor in poor air quality. The city’s commercial diesel fleet is a major culprit. To clean it up, the government offered owners the incentive of a grant towards replacement of pre-Euro-standard and Euro I light commercial vehicles with Euro IV models. This was a well-intentioned move. But owners have been slow to take up the offer. As a result nearly 50,000 of the older commercial vehicles remain on the roads.

The department has been overly generous in extending the deadline for claiming the grant for replacement of the dirtiest, pre-Euro polluters from next month to 2010 – the same as for Euro I and heavy vehicles. A higher licence fee for all old vehicles after that is a small price to impose for antisocial resistance to a proven air-quality initiative. Nonetheless, even this idea is bound to run into opposition from the transport trade and some lawmakers. The trade may have issues about the suitability of available Euro IV models. But these must be weighed against the public interest. This is a chance for the government to show a sense of urgency about pollution, something which is often lacking in efforts to improve our city’s air quality.

Studies for the semi-official Council for Sustainable Development show strong support among Hong Kong people for a range of initiatives. They include electronic road pricing to combat traffic congestion and roadside pollution, a colour-coded pollution warning system and a ban on leaving vehicle engines idling. Two years after the World Health Organisation issued new air-quality guidelines, we are still waiting for the government’s response. At least it is pressing ahead with a ban on idling engines. But until the legislation emerges intact from consultations with the transport trade, we must wait to see whether talk is translated into action.

For the sake of our health and quality of life, the time for talking is over. A tougher stance on older, polluting vehicles is needed.

Cleaner Option For Our Buses

Updated on Sep 17, 2008 – SCMP

I refer to Clive Noffke’s letter (“New deal can save Sokos”, September 10), and the announcement to scrap CLP Power’s proposed natural gas terminal that was going to add significant costs to consumers in Hong Kong (“Gas plan for Sokos ditched by CLP”, September 12).

The Hong Kong government can now support a plan to change the heavy diesel bus fleets over to compressed natural gas from the Towngas system, instead of building another terminal to receive the propane version of liquefied petroleum gas (LPG) for use in heavy engines. Taxis and minibuses use the butane version of LPG.

Heavy buses using compressed natural gas produce 80 per cent less in emissions than diesel engines. A study in Australia found that traffic fumes stunt the growth of babies in the womb, which should be a concern to health officials given the canyon-effect of multi-storey apartment blocks that can bottle in cancer dangerous particulates.

Bus depots in Brisbane Australia have installed compressed natural gas equipment that can refuel six buses in four minutes, while the bus is being cleaned and maintenance-checked before going back on the road. Single-deck buses are designed to have seven cylinders in the roof section of the bus. Double deckers would need a different design.

Compressed natural gas buses produce half the engine noise of diesel buses.

Hong Kong can become a leader in adopting new heavy vehicle fuel systems that could significantly reduce the grey smog that pollutes our skies. Our children could grow up breathing cleaner air which benefits their mental and physical development.

Ross Smith, Shek Tong Tsui

Beijing Pollution Could Be Deadly To Olympic Spectators

OLYMPIC WEATHERMAN – Meteorologist Doug Charko is part of Canada’s Beijing team

Daphne Bramham – Canwest News Service – Friday, July 25, 2008

Beijing pollution could be deadly to Olympic spectators, a headline in the Los Angeles Times screamed earlier this week.

It was based on a study by researchers from Northwestern University who found that particles spewed from diesel trucks, buses and coal-burning factories – small particles one-tenth the diameter of human hair – inflame the lungs, which then secrete interleukin-6. That causes blood to coagulate and increases the risk of heart attacks and strokes.

Few will be watching the air quality and climate conditions more closely than Doug Charko, who never imagined he would be on the Canadian Olympic team.

It’s because of his specialized skills that he’ll be proudly wearing the red, white and gold uniform in China. Charko is Team Canada’s meteorologist.

That’s right. The Canadian Olympic team has its own weatherman. It’s probably as much as surprise to you as it is to Charko.

“As a meteorologist, you expect to go to a government office and from your government job forecast weather for people’s picnics,” the Regina native said in a telephone interview from New Zealand where he now lives.

“To do the forecasting for the whole team and for Canada and to be involved at this level as part of the Canadian Olympic Committee’s performance-enhancement team is a huge privilege.”

Charko will be providing 10-day forecasts of temperature, humidex and air quality. The Chinese government’s website (http://www.beijingairquality.cn/) now provides current data and three-day forecasts. But there have been questions raised whether the data are accurate.

“Everyone is competing in the same conditions. The difference in knowing is just that – knowing,” says Charko.

Over the past two years, he’s gathered data and studied historic trends. Despite China’s heavy investment in cleaner power generation, Charko says there’s only been a “minuscule trend downward” in pollution. What will determine the extent of the smog is literally which way the wind blows. If it’s from the northwest, Charko says, the air will be “fantastically clean.” But there’s no guarantee of that and no guarantee it won’t rain despite the much-publicized plan to seed rain clouds to avoid downpours spoiling the opening and closing ceremonies.

“It is actual science (cloud seeding) and it does work on a small scale,” he says. “You can shoot rockets into individual clouds. That puts dust particles into the cloud and it makes it rain. But you can only do that on a small scale.”

August is Beijing’s rainiest month with lots of thunderstorms. Charko predicts five to seven days of showers during the Games with “coolish” temperatures, about 23 degrees, rather than the low 30s with humidity pushing it up into the low 40s.

Hong Kong, where the equestrian events are being held, will be worse – hotter, more humid and more thunderstorms, all of which are bad news especially for the horses.

Of course, most of Charko’s attention will be focused on forecasting wind on the Yellow Sea near Qingdao where the sailors compete. It’s how he came to the attention of the Canadian team.

He was first hired by an America’s Cup team. Then, in 1994 after moving to New Zealand, Charko worked as the meteorologist for the Brazilian sailing team at the Olympics in Sydney and again during the Athens Games.

In 2006, his home country came calling. The Canadian Yachting Association believed having a meteorologist forecasting wind and wind shifts was the secret of Britain’s success in the past two Summer Games.

In Athens, Britain not only had a meteorologist, it had weather stations on boats around the course, pumping out information that was relayed by coaches to sailors using hand signals.

It resulted in a furor and the International Sailing Federation banning forecasting equipment from the course and forcing coaches’ boats to be kept within what Charko calls “the penalty box.”

Charko is a bit of a contrarian, which could be a huge benefit to Canada’s team. He’s forecasting winds of up to 15 knots on four to six of the 14 days that the Olympic regatta is held. When he was there last August for the test regatta, there was one day with 25-knot winds and 10 foot seas. “You just can’t assume that the winds will be three kilometers every day.”

But that’s what some other countries’ sailors have prepared for, trimming their weight by as much as 10 pounds even if it costs them strength. The Canadians have not.

And so far, Charko’s been lucky in another way. None of his equipment has been confiscated.

Two years ago when the Brits set up a weather station in Qingdao, the Chinese secret police accused them of conducting “illegal meteorological surveys” and seized $37,000 worth of the equipment. It has yet to be returned.

The Chinese have also seized weather instruments from the American and Australian teams. They finished first and fourth, respectively, in total sailing medals in 2004, while China came second.

It’s led some people to speculate that at least in this case, China is more concerned about Olympic medals than state security.

Who knew that meteorologists might be worth their weight in gold?

Crude Awakening

The energy crisis requires a conservation strategy, not a public relations response

Joseph Cheng – Updated on Jul 02, 2008 – SCMP

The sharp rise in oil prices recently prompted hundreds of truck drivers to block traffic in Central, demanding the government to scrap the tax on diesel. This has been a worldwide phenomenon. Many governments were confronted with protests from drivers, fishermen and others whose livelihoods are threatened by high oil prices.

It is expected that the government will concede to the demands of the truck drivers who have seen their incomes slashed. Scrapping the tax on diesel, however, goes against the principles of energy conservation and environmental protection, and reinforces the perception that interest groups that exert pressure on the government can secure concessions.

The coming Legislative Council elections in September mean that even pro-establishment political parties are eager to please certain interest groups. The decline in the government’s popularity, and its recent controversies, have weakened its political will to stand firm.

According to government statistics, the price of diesel for vehicles rose 12 per cent between January and April this year, and at present the tax on diesel amounts to only 5 per cent of its retail price. Scrapping the diesel tax will not significantly cut overall fuel prices, and its impact on truck drivers’ incomes will be very limited. If oil prices continue to rise, the impact of dropping the tax will disappear.

In contrast, the government seemed to have adopted a more reasonable policy in responding to applications to raise ferry fares. It allowed the ferry companies to lease the ferry piers for commercial purposes, thereby giving the operators an extra source of profit and creating less pressure to raise fares. The benefits to consumers are direct and obvious.

There is no way of telling how scrapping the diesel tax would benefit truck drivers and consumers. It might favour logistics companies instead: the government has no mechanism to monitor the process.

Much more significant, if we believe that rising energy prices is a permanent global trend, and if we all support the principle of environmental protection, then the government must have a long-term strategy for energy conservation. Hong Kong is a sophisticated metropolis; but in comparison with major European cities, we are obviously behind in energy conservation and environmental protection.

If oil prices approach US$200 or even US$225 a barrel by 2012, what will be the impact on our economy and society?

Cities in Western and Northern Europe have absorbed the lessons of the two oil crises in the 1970s, and they have spent great efforts on energy conservation. They have developed satisfactory mass transit systems and discouraged the use of private cars. Urban planning facilitates pedestrians and cyclists.

To achieve the objective, the metropolitan authorities have to develop long-term plans. They also have to change people’s lifestyles and values. Transport reform not only aims to conserve energy, but also to reduce pollution and promote healthy living.

Oil prices have quadrupled or quintupled in the past five years or so, but neither the government nor the community have given it much serious thought. Air pollution in the central business district has been deteriorating. Private cars are an obvious source of pollutants, but Hong Kong people generally have done little to improve the situation. We cannot put all blame on the government; we all have our share of responsibility.

From a purely economic point of view, the transport industry is in deep trouble. Truck drivers work fewer and fewer hours and their incomes have plummeted. The diesel tax is certainly not the main issue. The government, however, still considers logistics one of the territory’s four pillar industries.

At the very least, a review is needed. The government should initiate a large-scale study of the problems and challenges facing the industry, especially its future development on a cross-border basis.

The government subscribes to the principle of “small government”, and normally does not want to interfere in the economy. This is well supported by Hong Kong people. But it lacks vision, and often considers major issues from a public relations point of view. This can only lead to an erosion of its legitimacy.

Joseph Cheng Yu-shek is a professor of political science at City University of Hong Kong

Scrapping Fuel Tax Is Wrong

Updated on Jun 26, 2008 – SCMP

I cannot believe that our administration is scrapping duty on Euro V diesel just to please a minority of angry vehicle operators.

At the same time, the very same operators allow their drivers to keep thousands of engines idling and waste a vast amount of fuel while polluting our already deteriorating environment.

As long as drivers can afford to idle their engines for hours, the cost of fuel obviously is still too cheap – otherwise, they would start saving at their own end first.

What Hong Kong needs is a strategic environmental vision and policy put into practice now to achieve the kind of quality environment that you find in other countries.

A scrapping of fuel tax without a clear policy is shortsighted. We need laws forcing drivers and operators of heavy vehicles to reduce fuel consumption and switch to the most modern available engine technology to achieve immediate air quality improvements.

Saki A. Chatzichristidis, Kennedy Town

Drivers Unhappy Despite Dropping Of Diesel Tax

Transport workers see little relief

Dennis Eng and May Chan – Jun 24, 2008 – SCMP

The scrapping of tax on Euro V diesel would do little to alleviate high fuel costs, truck drivers and public transport operators said yesterday, refusing to rule out more fare rises.

Their comments came after Secretary for Transport Eva Cheng, speaking to legislators, said the 56 HK cents per litre duty on Euro V diesel would be dropped, while the duty on ultra-low sulfur diesel and petrol would be unchanged. She said the move would affect 130,000 vehicles and save drivers HK$600 to HK$700 a month.

The policy was designed to encourage use of Euro V diesel, which emits about 80 per cent less sulfur and 5 per cent fewer particulates than Euro IV fuel.

Ms Cheng denied the government had caved in to public and industry pressure and legislators largely welcomed the relief measure.

Spokesmen for Shell and Exxon Mobil said they would reflect the duty waiver in their pump prices as soon as possible once the change was ratified.

Lai Kim-tak, chairman of the Medium and Heavy Truck Concern Group, did not hold out much hope that the tax exemption would offer appreciable long-term relief.

“There will be no guarantee of affordable fuel prices unless the government promises to regulate and monitor fuel prices,” he said.

Lai Ming-hung, a spokesman for the Taxi and Public Light Bus Concern Group, said the measure would not benefit the majority of taxis and minibuses, which had been converted to run on the cleaner liquefied petroleum gas.

“Taxis and minibuses may still feel pressure to raise their fares if fuel prices remain high,” he said.

Taxis have already succeeded in raising the flagfall by HK$1 to HK$16 in urban areas and HK$13.50 in the New Territories.

Chiang Chi-wai, a spokesman for the Fuel Price Concern Transportation Joint Conference, which welcomed the concession, said the government should lower the land premium on petrol station sites.

The tendering system for operating licences for the stations should also be reviewed, Mr Chiang said. The leases for petrol stations are not automatically renewed but put up for tender. The high land premium payable on the sites is often cited by the transport and logistics trade as a reason for the high price of fuel in Hong Kong.

But Ms Cheng said land prices were determined by market forces and the government would not subsidise any one particular trade by scrapping the premium.

Deputy secretary for the environment Roy Tang Yun-kwong said the government kept a close watch on fuel prices and had measures in place to ensure the change in duty was passed on to drivers.

The 56 HK cents per litre duty for Euro V diesel was introduced for two years on December 1 last year.

The Transport and Housing Bureau said it hoped the exemption could take effect during this Legislative Council session, but it could consider imposing the duty again in future.

In line with the EU, the government plans to make Euro V the required minimum for diesel vehicles from January 1 next year. Euro V can be used by all existing diesel vehicles.

Duty shall be payable on hydrocarbon oil (other than ultra low sulphur diesel and Euro V diesel) at the following rates per litre –

(a) aircraft spirit – HK$6.51
(b) light diesel oil – HK$2.89
(c) motor spirit (leaded petrol) – HK$6.82
(d) motor spirit (unleaded petrol) – HK$6.06

Oil Prices in Hong Kong

If oil keeps rising we all pay, or change our ways

Updated on Jun 19, 2008

A sustained surge in world oil prices eventually hits everyone in the pocket. But some social good can result from dearer oil, such as a conscious effort to avoid waste of a finite resource and the benefit that that can have for the environment. People make choices they previously resisted, such as buying smaller vehicles that emit less pollutants, using public transport and travelling less.

However, Hong Kong’s truck, van and minibus drivers, who are spending thousands of dollars a month more on fuel than previously, can do none of these things to relieve this burden. They also lack the bargaining power to pass it on down the supply chain, and no one is suggesting the consumer should pay.

As a result, their leaders have mounted a sustained public campaign to force the government to cut diesel taxes, marked by a demonstration in which heavy vehicles brought traffic in Central to a standstill. As we report today, it appears to have worked, with the government likely to waive the duty of HK 56 cents a litre on Euro V diesel. The tax was cut by half six months ago as an incentive for drivers to switch to using it.

The government spends billions on incentives and tax concessions for the use of less-polluting vehicles and cleaner fuel. For example, the existing duty on Euro V diesel of less than 5 per cent of the retail price is one of the lowest in the world.

Setting it at that level, in a city where diesel prices are low by world standards, was an attempt to encourage people to switch from dirtier fuels to Euro V diesel without making it so inexpensive as to lead to wasteful usage. If the government can be pressured into detouring from this socially responsible approach, it will be evidence of the political volatility that rises in fuel prices can induce. Financial Secretary John Tsang Chun-wah is right to have said the issue is complicated. But it is questionable whether a waiver is good public policy.

It has been suggested a waiver would be temporary, lasting perhaps two or three months. Hopefully, oil prices will eventually drop, relieving pressure on the drivers. But few industry observers can see an end to the spiral. What will the government do if the price of crude oil continues to head towards US$200 a barrel, as some predict, thereby negating the benefit of a duty waiver? Officials will be under pressure to introduce other measures.

There is every reason to believe high oil prices are here to stay. The increase in demand, led by the mainland and India, coupled with lagging exploration and exploitation of remaining reserves, has changed the equation. Alternative energy sources and technologies are a long way from making a real difference.

The rising cost of fuel does not mean that fuel taxes should be scrapped. They help ration, by price, the source of vehicle emissions which contribute to air pollution and global warming. Consumers then use fuel less wastefully. This is not the time to be talking about getting rid of such a tax. A call by a spokesman for drivers to scrap the diesel tax altogether is out of the question because it would encourage the use of more polluting fuel.

The government appears to be ready to give a measure of relief to a hard-pressed sector. However, unless the oil price retreats soon, waiving duty will be only a short-term palliative. Sooner or later, consumers must foot the bill for rising fuel costs or change their consumption habits. But first, a way must be found for transport operators to pass them on.

Why Diesel Particulates Cause Cardiovascular Disease

ScienceDaily (June 9, 2008) — Håkan Törnqvist maps previously unknown mechanisms that may explain why air pollution in the form of particulates causes heart attacks, stroke, and increasing mortality in the dissertation he will be publicly defending at Umeå University on June 5.

Particulates in diesel exhaust are a substantial cause of the negative health effects traced to air pollution, above all in traffic environments. Diesel exhaust contains a number of extremely tiny particles about 1/10,000 mm in diameter, with chemical compounds bound to the surface that have been suggested to lie behind the ability of these particles to cause harmful health effects.

Individuals with lung or heart disease are especially vulnerable and are impacted most negatively during periods with high levels of air pollution. In his dissertation, Håkan Törnqvist studied the effects of diesel exhaust on healthy individuals and respective patient groups with chronic obstructive lung disease (COL) and coronary disease with atherosclerosis in the coronary artery.

The aim of the studies in the dissertation was to use controlled exposure studies to try to elucidate the mechanisms that explain why diesel exhaust particulates in polluted air cause increased morbidity in both lung and heart diseases. The studies were carried out in an exposure chamber, where the individuals were exposed for one hour to, respectively, diesel exhaust with a particulate concentration of about 300 µg/m3 and filtered air. The two exposures were in random order, so the individuals served as their own controls.

The dissertation work studied whether exposure to diesel exhaust would lead to a deterioration of the lung function and increased inflammation of the airways as measured by induced sputum (coughing samples) in patients with moderately severe but stable COL. Analysis of the cough samples could not reveal any increase in inflammation of the airways, not was there any deterioration of the lung function. Studies of the these same patients were also used to determine whether exposure to diesel exhaust can lead to increased general inflammation, can impact the capacity of the blood to coagulate, or can cause damage to the lung epithelia as measured in the blood. No general increase in blood coagulation or signs of increased inflammation in the blood could be found.

The thesis also addressed the question of whether exposure to diesel exhaust can affect the vascular function in a group of healthy individuals 2 and 6 hours after exposure. In this group exposure to diesel exhaust decreased two important and complementary blood-vessel functions: the regulation of the width of the blood vessels and the body’s own ability to dissolve blood clots (fibrinolysis). What’s more, the study illuminated the late course of events involved in the blood-vessel effects triggered by diesel exhaust in healthy individuals in the test. As much as 24 hours after their exposure to exhaust, the capacity of their blood vessels to expand was disturbed. Moreover there were signs of systemic inflammation, measured as an increase in inflammatory markers in the blood.

The final study in the dissertation targeted individuals with clinically fully stable coronary artery disease. The issue was whether exposure to diesel exhaust can affect the heart, decrease vessel mobility, and hamper the capacity to dissolve blood clots. A lowered capacity to dissolve blood clots was observed, together with an impaired ability of blood vessels to expand. The most important finding, however, was that after exposure to diesel exhaust patients evinced EKG signs that were consistent with a shortage of oxygen in the heart muscle. This effect was general, that is, not limited to any particular blood vessel in the heart, and it was observed despite the fact that the patients were fully stable in their coronary artery disease and were under optimal medical treatment.

The dissertation clarifies previously unknown mechanisms that can explain why air pollution in particulate form causes heart attacks, stroke, and increased mortality. It shows that diesel exhaust cause a rapid deterioration of the function of blood vessels that persists as long as 24 hours after exposure. The EKG findings in heart patients indicate acute heart effects that are consistent with increased risk of heart attack in connection with exposure to traffic.