Paris restricts traffic on new pollution episode 

A new peak in air pollution forced Paris authorities to restrict tragic in French capital on Dec. 16, Paris authorities said on Thursday.

“Because of a new episode of air pollution …, Paris city announces the implementation of alternating traffic measure and decides free residential parking for Friday…,” the city authorities said in a statement.

On Dec. 16, only vehicles with license plates ended with even numbers will be allowed to circulate in the city center.

Local authorities also offered free public transport. They encouraged the use of clean modes of transport such as Velib and Autolib, which are public sharing services for bicycles and electric cars.

Over last weekend, Paris removed driving restrictions which has been imposed since Dec. 6 on expected improvement in air quality.

In order to curb deteriorating air quality, the French capital will launch next month a vignette system based on a color-coded sticker indicating the age and pollution level of cars to allow only clean vehicles to circulate.

Vehicles, heating systems and wood burning have caused smog spike, the country’s worst and longest pollution in a decade.

Source: Paris restricts traffic on new pollution episode – Global Times

Posted in Air Quality, Europe, France | Tagged , , | Leave a comment

Beijing issues red alert for severely high air pollution 

Beijing city government has issued a red alert for severely high levels of air pollution in the city for five days from late on Friday until Dec. 21, the Beijing environmental protection bureau said on its official Twitter-like Weibo account.

The incoming smog was due to an accumulation of air pollution in Beijing and surrounding areas, including Tianjin city and Hebei, Shandong and Hunan provinces, according to Thursday’s post, which cited forecasts from the China Environmental Monitoring Center.

A colour-graded warning system of alerts was introduced in China’s capital city last year as part of the government vow to crackdown on environmental degradation following decades of unbridled economic growth.

Beijing’s first ever red alert was issued in December last year, temporarily closing schools and halting construction in the city.

The government has since been tweaking the system, raising in February the threshold of issuance to a higher average daily air quality index reading.

Source: Beijing issues red alert for severely high air pollution | Daily Mail Online

Posted in Air Quality, Asia, China | Tagged , , | Leave a comment

‘Air pollution impairs function of blood vessels’

Air pollution impairs the function of blood vessels in the lungs, according to a study in more than 16,000 patients presented at EuroEcho-Imaging 2016.

“This is the first human study to report an influence of air pollution on pulmonary vascular function,” said lead author Dr. Jean-Francois Argacha, a cardiologist at the University Hospital (UZ) Brussels, Belgium. “This is a major public health issue for people living in polluted urban areas where exercise could damage the lungs and potentially lead to decompensated heart failure.”

Promoting a safer environment appears to be as important as controlling conventional risk factors, like high cholesterol, in reducing cardiovascular disease. Air pollution consists of particles (particulate matter [PM] of different sizes) and gases (nitrogen dioxide, ozone, etc). The first vascular bed in contact with air pollutants is the pulmonary circulation yet few studies have investigated the impact.

“Such studies are important because if air pollution causes narrowing of the blood vessels in the lungs (vasoconstriction), this combined with the systemic effects of pollution could cause decompensated heart failure,” said Argacha. The current study examined the effect of air pollution on pulmonary haemodynamics in a population and in individuals.

The population study assessed whether common levels of outdoor air pollution influence the echocardiography parameters conventionally used to evaluate the pulmonary circulation and right ventricular function. Between 2009 and 2013, transthoracic echocardiography including an evaluation of pulmonary pressure was conducted in 16 295 individuals and correlated with average air pollution in Brussels on the same day and in the last five and ten days. The authors examined whether any patient subgroups were more susceptible to the effects of air pollution.

The individual study examined the effect of air pollution on pulmonary circulation in ten healthy male volunteers exposed to pollutants in a chamber with standardised conditions. The volunteers were exposed to ambient air or dilute diesel exhaust with a PM2.5 concentration of 300 ?g/m3 for two hours in a randomised, crossover study design. The effects on pulmonary vascular resistance were assessed with echocardiography at rest and during a cardiac stress test in which the drug dobutamine is given to simulate heart function during exercise.

The population study showed a negative effect of PM10, PM2.5 and ozone on pulmonary circulation on the same day and over five and ten days. Specifically, increases in these pollutants were associated with reduced pulmonary acceleration time and increased pulmonary acceleration slope. Increases in PM10 and PM2.5 over ten days were associated with worse right ventricle function. The negative impact of PM10 on pulmonary circulation was more pronounced in patients with obstructive sleep apnoea.

Argacha said: “Air pollution was associated with increased pulmonary vascular tone which makes it more difficult for blood to flow to the lungs. Longer exposure to air pollution exposure seems necessary to impair right ventricular systolic function. Patients with obstructive sleep apnoea were at greater risk.”

The individual study showed that exposure to diesel exhaust did not modify the pulmonary circulation compared to ambient air when the volunteers were resting but did when dobutamine was administered.

Source: ‘Air pollution impairs function of blood vessels’ — Features — The Guardian Nigeria

Posted in Air Quality, Health Effects of Air Pollution | Tagged , , , , , | Leave a comment

Traffic blocks in place as smog engulfs Italy 

Italy’s major cities have introduced restrictions on cars and other motor vehicles to combat dangerously high levels of air pollution.

The situation is most serious in Milan, where safe limits of fine particles have been surpassed more than 60 days this year, and for seven consecutive days so far in December.

The most polluting cars – Euro 0 petrol cars and Euro 0, 1 and 2 diesel cars – have been banned from the streets on weekdays between 7:30 and 7:30pm since mid-October. This ban has now been extended to weekends as well, with an additional block on diesel Euro 3 cars in place between 9am and 5pm.

On Sunday, 15 motorists were fined for flouting the ban after spot checks were carried out.

Milan’s city council has taken other measures to fight the smog: bonfires, or any other activity involving burning wood, have also been forbidden.

Meanwhile, property owners have been asked to lower temperatures in homes and offices to 19C as an additional way of fighting the fine particles pollution.

The city’s councillor for mobility and environment said the restrictions would likely continue over the coming days, as weather conditions were expected to stay stable.

Italy’s other major cities have also been battling smog caused by stagnant air and unseasonably mild weather.

Sunday was the first ‘Eco Day’ in Rome, with the most polluting cars banned from the streets.

In Naples, traffic restrictions are in place between 9am-12:30 and 2:30-4:30pm, with the ban in place on Monday, Wednesday and Friday of this week. Turin will introduce its first traffic blocks on Wednesday.

On Monday, consumer rights’ organization Coldiretti noted that the lack of green spaces in Italy’s big cities may be one factor in the country’s high level of air pollution.

It said that cities  green spaces made up just 2.7 percent of urban, according to data from national statistics agency Istat.

“This calls for action at a structural level, since an adult plan is able to absorb 100-250g of fine particles from the air, so one hectare of plants eliminates about 20 kilograms of dust and smog each year,” the organization noted.

Paris and Lyon in France have also been suffering from the smog over the past week, with Paris making all public transport free to residents. However, this measure was lifted over the weekend as air pollution levels began to fall.

But motorists aren’t the only culprits. Last December, a town in Campania, near Naples, banned pizza-making over fears that the wood-burning ovens were contributing to pollution.

Source: Traffic blocks in place as smog engulfs Italy – The Local

Posted in Air Quality, Europe, Italy | Tagged , , , , , , | Leave a comment

France to require ‘clean stickers’ on vehicles in high pollution areas

Vehicles failing to display Crit’Air stickers will be banned from low-emission zones in Paris and other cities in bid to combat smog

French motorists in high pollution areas will be required to display a “clean sticker” on their vehicle from January to combat pollution that has created a cloud of noxious smog in Paris and other cities.

The six differently coloured Crit’Air (air criteria) stickers will be large enough for the police to see at a distance and will indicate the age of the vehicle, its engine and cleanliness on a scale of one to six.

Although emergency vehicles, vintage cars and certain delivery and security vans will be exempt from the regulation, to take effect from 16 January, stickers will be obligatory for motorbikes and scooters.

On weekdays, vehicles without the stickers will be banned from entering designated zones à circulation restreinte (ZCR – low-emission zones), which will be determined by local authorities based on pollution evaluations.

Announcing a raft of measures to combat the increasing problem of pollution in France’s cities, the ecology minister, Ségolène Royal, said the government was “taking the problem seriously”.

“What we now need is a revolution bringing clean transport, responsible cities, electric vehicles in cities and different ways of moving around,” Royal said.

The alternating traffic rule – in which cars with odd or even registration plates are banned from cities – was enforced for a record four days in Paris last week. It was dropped after the pollution improved over the weekend when the roads were less busy. But Airparif, which monitors air quality in the French capital, warned that the smog, which led to a rise in asthma and hospital admissions for breathing difficulties and caused schools to cancel outdoor sports, could return with the rush-hour traffic on Monday.

Other measures announced include an extension of the “superbonus scheme” in which vehicle owners can obtain a €10,000 (£8,400) payment for changing an old polluting vehicle for an electric one. Until now this has been offered to private car owners but is to be extended to taxis and vans.

From January, the government will also offer €1,000 to those buying an electric scooter.

The Paris mayor, Anne Hidalgo, who has made fighting pollution in the city a priority, has declared she wants the capital free of diesel vehicles by 2020 and the whole of France by 2025.

Source: France to require ‘clean stickers’ on vehicles in high pollution areas | World news | The Guardian

Posted in Air Quality, Europe, France | Tagged , , | Leave a comment

Air pollution impairs function of blood vessels in lungs: Authors recommend limiting physical activity in heavily polluted areas 

Air pollution impairs the function of blood vessels in the lungs, according to a study in more than 16,000 patients presented today at EuroEcho-Imaging 2016.

“This is the first human study to report an influence of air pollution on pulmonary vascular function,” said lead author Dr Jean-Francois Argacha, a cardiologist at the University Hospital (UZ) Brussels, Belgium. “This is a major public health issue for people living in polluted urban areas where exercise could damage the lungs and potentially lead to decompensated heart failure.”

Promoting a safer environment appears to be as important as controlling conventional risk factors, like high cholesterol, in reducing cardiovascular disease. Air pollution consists of particles (particulate matter [PM] of different sizes) and gases (nitrogen dioxide, ozone, etc). The first vascular bed in contact with air pollutants is the pulmonary circulation yet few studies have investigated the impact.

“Such studies are important because if air pollution causes narrowing of the blood vessels in the lungs (vasoconstriction), this combined with the systemic effects of pollution could cause decompensated heart failure,” said Dr Argacha.

The current study examined the effect of air pollution on pulmonary haemodynamics in a population and in individuals. The population study assessed whether common levels of outdoor air pollution influence the echocardiography parameters conventionally used to evaluate the pulmonary circulation and right ventricular function. Between 2009 and 2013, transthoracic echocardiography including an evaluation of pulmonary pressure was conducted in 16 295 individuals and correlated with average air pollution in Brussels on the same day and in the last five and ten days. The authors examined whether any patient subgroups were more susceptible to the effects of air pollution.

The individual study examined the effect of air pollution on pulmonary circulation in ten healthy male volunteers exposed to pollutants in a chamber with standardised conditions. The volunteers were exposed to ambient air or dilute diesel exhaust with a PM2.5 concentration of 300 ?g/m3 for two hours in a randomised, crossover study design. The effects on pulmonary vascular resistance were assessed with echocardiography at rest and during a cardiac stress test in which the drug dobutamine is given to simulate heart function during exercise.

The population study showed a negative effect of PM10, PM2.5 and ozone on pulmonary circulation on the same day and over five and ten days. Specifically, increases in these pollutants were associated with reduced pulmonary acceleration time and increased pulmonary acceleration slope. Increases in PM10 and PM2.5 over ten days were associated with worse right ventricle function. The negative impact of PM10 on pulmonary circulation was more pronounced in patients with obstructive sleep apnoea.

Dr Argacha said: “Air pollution was associated with increased pulmonary vascular tone which makes it more difficult for blood to flow to the lungs. Longer exposure to air pollution exposure seems necessary to impair right ventricular systolic function. Patients with obstructive sleep apnoea were at greater risk.”

The individual study showed that exposure to diesel exhaust did not modify the pulmonary circulation compared to ambient air when the volunteers were resting but did when dobutamine was administered. “This suggests that pollution is more harmful to the lung circulation during exercise,” said Dr Argacha.

He continued: “Our dual approach provides original data on the impact of air pollution on the pulmonary circulation. The individual study strengthens the plausible link emerging from the epidemiological research.”

Regarding how to minimise the health risks, Dr Argacha said: “Our main advice is to limit physical activities during heavy air pollution. More studies are needed before specific recommendations on intensity and duration of exercise can be given. Emission controls such as particulate filters have reduced tailpipe emissions, but other sources such as engine crankcases, tyres and brake wear are becoming important. No strong evidence exists on effectiveness of face masks to eliminate or reduce particle exposure.”

He added that legislation protecting the population from air pollution is weak. He said: “Diesel emission control has been associated with health outcomes5 but unfortunately the standards defined by the European Union differ from those of the World Health Organization.

Source: Air pollution impairs function of blood vessels in lungs: Authors recommend limiting physical activity in heavily polluted areas — ScienceDaily

Posted in Air Quality, Health Effects of Air Pollution | Tagged , , , , | Leave a comment

Running home from work in high air pollution could be deadly, study suggests 

Running or cycling home from work when air pollution is high could damage the lungs and lead to heart failure, a new study suggests.

Researchers in Belgium have discovered that the pollution causes blood vessels in the lungs to narrow, which prevents oxygen circulating effectively through the body, and could lead to cardiovascular disease.

“This is a major public health issue for people living in polluted urban areas where exercise could damage the lungs and potentially lead to decompensated heart failure,”  said lead author Dr Jean-Francois Argacha, a cardiologist at the University Hospital  Brussels.

“Our main advice is to limit physical activities during heavy air pollution. No strong evidence exists on effectiveness of face masks to eliminate or reduce particle exposure.”

Researchers looked at more than 16,000 people who had been admitted to hospital in Belgium between 2009 and 2013 and who had an echocardiogram taken to show the movement of blood through the heart.

They then compared the results to air pollution records and found that on average patients had worse circulation on days where pollution was high, or had been in the week before admission.

In a second experiment scientists exposed 10 healthy male volunteers to pollution in a chamber and tested their lung function at rest, and when taking a drug which simulates heart function during exercise.

Although there was no impact when resting, circulation worsened when the drug was administered.

“This suggests that pollution is more harmful to the lung circulation during exercise,” added Dr Argacha.

“Our dual approach provides original data on the impact of air pollution on the pulmonary circulation.”

The research was presented at the EuroEcho-Imaging annual meeting in Leipzig, Germany.

Source: Running home from work in high air pollution could be deadly, study suggests 

Posted in Air Quality, Health Effects of Air Pollution, Running, Sports | Tagged , , , | Leave a comment

Parisians grapple with worst winter pollution in a decade

Under deceptively blue skies, the marvels of Paris beckoned. But art dealer Sophie Vigourous wore a face mask to appreciate them because of the pollution.

Under deceptively blue skies, the marvels of Paris beckoned. But art dealer Sophie Vigourous wore a face mask to appreciate them because of the pollution.

The 38-year-old has lung cancer, putting her in the groups most at risk from the toxic, throat-tickling broth of tiny particles — far smaller than the width of a human hair — blanketing France’s capital and other cities. It has prompted vehicle bans and other extraordinary but only moderately effective anti-pollution measures.

When viewed from the 210-meter (690-feet) tall Montparnasse Tower, Paris’ tallest skyscraper, the city’s worst episode of winter pollution in a decade was clearly visible, a brown haze punctured by the Eiffel Tower.

But from street level, the fog of lung-penetrating pollutants was less obvious, making the danger more insidious than the gritty, almost chewy, smog of notoriously unhealthy cities like Beijing.

Out on their morning jog, a group of heavy-breathing fire officers in shorts and T-shirts sucked in lungfuls, either oblivious or uncaring. Likewise, the jogger who bounded up the Champs-Elysees, a smug smile on her face.

Vigourous, however, knew better: hence the paper face mask.

“A nice day like this makes you want to go out for a walk and get some fresh air,” she said. “You can’t really feel it, the pollution.”

But by the end of the day, “it stings,” she noted.

Large red stains showing the pollution cloud have covered daily maps produced by Airparif since last week, broken up by a two-day window of cleaner air last weekend. The monitoring agency says a high-pressure weather system and a low-altitude blanket of warmer air over the city are acting like a saucepan lid, forcing Paris to breathe its own trapped emissions.

“An anti-cyclone with very little wind that prevents the dispersion of pollutants,” Airparif spokeswoman Amelie Fritz explained.

The problematic pollutant this time is particulate matter — “very fine dust,” mostly from vehicle emissions and wood-burning heating, Fritz said. Able to penetrate the lungs and bloodstream, the tiny PM10 particles can cause heart disease, lung cancer, asthma and acute respiratory infections, according to the World Health Organization.

The response from Paris authorities involves both carrot and stick. To encourage car users to switch to public transport, the Metro, suburban trains and buses have been free since Tuesday, at a cost, Paris region authorities say, of about 4 million euros ($4.3 million) per day. Paris’ Velib bicycle-sharing service and Autolib electric cars are offering special deals.

On the punitive side, the Paris police chief has reduced speed limits, banned outdoor and indoor fires and even required homeowners to restrict their heating to no more than 18 C (64 F).

The headline measure, an alternating ban on cars, depending on whether they have odd or even-numbered plates, has been extended into Friday. Drivers face fines of between 22 ($23) and 75 euros ($80) for ignoring the rule. A similar scheme will be implemented Friday in the city of Lyon, as pollution hits various regions, including the Rhone valley.

But the Paris ban doesn’t apply to small trucks, trucks delivering food and other essentials, to cars carrying at least three people and to certain professions. Undertakers and journalists, for example, aren’t affected. The boulevards still hum with vehicles.

“We’ve noticed that the measures haven’t been followed that much,” said Fritz at Airparif. “We’ve noticed only 5 to 10 percent less traffic.”

Among those who abided by the rule on Thursday were Marion Le Mouroux, her mother and sister. Leaving their diesel-burning Renault at home, they rode together to work in an Autolib. The electric cars weren’t affected by the ban.

“It’s worrying for our future,” Marion Le Mouroux said after connecting the vehicle for a recharge. “If we are generating this much pollution, what’s going to become of us.”

Source: Parisians grapple with worst winter pollution in a decade | The Telegraph

Posted in Air Quality, Europe, France | Tagged , , | Leave a comment