Study: climate change will worsen air pollution

By the end of the century, more than half of the world’s population could be exposed to “stagnant atmospheric conditions”, which would keep pollutants low in the air, worsening the effects of pollution, according to a new study.

Scientists predicted that in a high greenhouse gas emissions scenario, around 55% of people will experience more air stagnation by 2099, with India, Mexico, western US and the Amazon experiencing this phenomenon for up to 40 days more than currently.

Atmospheric stagnation occurs when light winds and lack of rainfall keep particles, soot, dust and ozone low in the atmosphere instead of allowing them to disperse. The phenomenon, similar to what happened in the UK in April, can worsen the effects of pollution on human health.

“These results indicate that anthropogenic climate change is likely to alter the level of pollutant management required to meet future air quality targets”, the study, published in Nature Climate Change, says.

Daniel Horton, a climate modeller at Stanford University and lead author of the study, said, “Much of the air-quality community focuses on pollutants. This study takes a step back and looks at the weather or climate component that can lead to the formation of hazardous air quality.”

Outdoor air pollutants have been recently labelled by the World Health Organisation as the most widespread carcinogenic for humans. Pollution has been found to have possible links with the risk of autism and malfunctioning heart beat.

Figures by Public Health England (PHE), revealed that air pollution represented “the biggest public health risk after smoking”, contributing to the death of about 29,000 people in the UK every year.

via Study: climate change will worsen air pollution – Blue and Green Tomorrow.

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Poor air quality killing 500 city residents a year

It is killing hundreds of people in Sheffield every year, with annual health costs of £160 million.

But tackling the city’s unsafe levels of deadly air pollution effectively means some tough calls for decision makers in Sheffield.

The city was named earlier this year by the World Health Organisation as being among nine urban areas in the UK which are breaching safe levels of air quality.

Coun Jack Scott, Sheffield Council cabinet member for environment, said the authority is doing all it can to tackle the problem – but added changes in people’s behaviour are needed to change the city’s air quality problems.

It comes as the issue of air pollution plays a part in two major planning decisions.

Campaigners against the potential new Ikea in Sheffield – councillors are due to make a decision on the store today – have warned its creation could add to the already ‘atrocious’ air quality in Tinsley, where it is planned the new site would be based.

And those fighting against the building of a new motorway service station on 20 acres of ancient woodland at Smithy Wood near Chapeltown have listed the potential for the site to further damage air quality in South Yorkshire as one of their reasons for objection.

Neil Parry, from the East End Quality of Life Initiative, said air pollution has serious health consequences for people exposed to it.

“It is not just about the deaths, it is the ill health that is caused,” he said.

“This needs to be taken seriously and it is good the WHO is saying these things. It increases pressure to take some action.”

He said people need to be encouraged to use vehicles less and to change their behaviour.

Coun Scott said funding has been secured for a public information campaign that will start this autumn and encourage people to use cars less in a bid to reduce air pollution levels.

The council published an Air Quality Action Plan last year setting out a range of initiatives to tackle the issue.

It said poor air quality is causing an estimated 500 premature deaths a year in Sheffield, with annual health costs of around £160 million.

The report added poor air quality results in increased admissions to hospitals.

The action plan includes proposals such as controlling industrial emissions, mitigating the impact of the M1 by pushing for a speed limit reduction along the road as it passes by Sheffield, and looking into the possibility of introducing a city centre ‘Low Emission Zone’ similar to one operating in London.

A zone was introduced in London in 2008 and charges drivers in an attempt to reduce the number of polluting vehicles on the road.

The council’s air quality action plan suggested a feasibility study should be carried out into whether the policy would work in Sheffield.

Coun Scott said he believes the Government is ‘listening’ on reducing speed limits on the M1, with the council calling for vehicles to be limited to 50mph.

A Highways Agency consultation on reducing the limit to 60mph between junction 28 at Mansfield and junction 35a at Sheffield and Rotherham between 7am and 7pm each day finished in March, with a decision expected later this year.

Coun Scott said buses in the city are among the ‘cleanest and most efficient in the country’.

But he added more needs to be done about encouraging the use of more environmentally-friendly taxis and HGVs.

He said: “Five hundred people a year are dying in Sheffield and we need to take decisive action. The WHO report doesn’t necessarily tell us anything we didn’t know before.

“We are leading the way for cities on this stuff. We know we have got to take this seriously but people need to play their part too.

“If people can use bikes, or for just one journey out of 10 walk instead of using the car, that would have a massive impact in terms of air quality.

“There is no magic lever in the Town Hall. We will be bold and take strong action, but we need people to work with us.

“Our view is that we are on borrowed time in terms of really positive action on this.”

‘Potential new Ikea may lead to more premature deaths’

Sheffield Council’s director of public health has warned the potential new Ikea store could lead to more premature deaths in Sheffield through increased air pollution.

Dr Jeremy Wight said the store will cause ‘negative health effects’ because of the impact on air quality through extra car journeys.

A report to today’s planning meeting, which has recommended the scheme for approval, noted Dr Wight has expressed concerns about the potential for the store to bring about a ‘small number’ of additional deaths from diseases such as heart attacks and strokes.

It said: “The actual worsening of air quality is, in proportional terms, small, but it is a small proportional deterioration of air quality that is already very bad.

“It is the view of the council’s director of public health that the public health harm caused by the slight worsening of already poor air quality, while not precisely quantifiable, will comprise additional cases of respiratory and cardiovascular disease, and will lead to a small number of additional premature deaths.”

And an environmental campaigner wrote to the founder of Ikea asking him to scrap the company’s plans for the store.

Neil Parry, from the East End Quality of Life Initiative, wrote to Ikea founder Ingvar Kampard calling for the company to withdraw its plans because of concerns about its potential impact on already poor air quality levels in Tinsley.

He said: “People there have much worse health than in other areas of Sheffield.

“One of the reasons is that the traffic pollution of the air is atrocious – in fact it is at illegal levels, much beyond the limits set by the European Union.

“An Ikea store there is going to make matters even worse with all the traffic it will attract.”

Ikea says the store would create 700 jobs and it will spend £400,000 on environmental schemes such as planting new trees and green bus technology.

Councillors are meeting at 10am today to discuss the Ikea application.

Fight to stop new Motorway service station on ancient woodland

Those fighting against plans to build a new motorway service station on 20 acres of ancient woodland at Smithy Wood near Chapeltown have listed as one of their reasons for objection the potential for the site to further damage air quality in South Yorkshire.

MP Angela Smith, who represents Penistone and Stocksbridge, is among hundreds of objectors campaigning against plans for a new M1 service station to be built at Smithy Wood.

She said one of her key objections is the potential for the site to further increase air pollution problems. “The area is also within the boundaries of an Air Quality Management Area, an area where because of the poor quality of the air it is proposed to reduce the speed limit on the M1,” she said.

“The extra traffic that would be drawn in by this development would add substantially to decreases in air quality and this I feel is totally unacceptable.”

In their environmental assessment, developers Extra Motorway Service Area say traffic generated by the proposed development may have a ‘slightly adverse’ impact on air quality, but mitigation strategies will be put in place to reduce potential problems.

via Poor air quality killing 500 city residents a year – The Star.

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Air pollutant reading improves as smoke blows away

All states recorded a moderate to healthy Air Pollutant Index (API) this morning, compared with yesterday when Port Klang reached an unhealthy level. The Department of Environment’s website showed that only the Balak Baru, Kuantan area exceeded an API of 90 as of 7am today. API levels elsewhere ranged from 23 (Tawau, Sabah) to 86 (Batu Muda,…

All states recorded a moderate to healthy Air Pollutant Index (API) this morning, compared with yesterday when Port Klang reached an unhealthy level.

The Department of Environment’s website showed that only the Balak Baru, Kuantan area exceeded an API of 90 as of 7am today.API levelselsewhereranged from 23 (Tawau, Sabah) to 86 (Batu Muda, Kuala Lumpur and Port Dickson, Negri Sembilan).

Sabah and Sarawak remain untouched by smoke, while Terengganu and a few areas in Kelantan and Johor also have healthy readings.

An API reading of between 0 and 50 is considered good; 51 and 100, moderate; 101 and 200, unhealthy; 201 and 300, very unhealthy; and 301 and above, hazardous.

The API calculation is based on five major air pollutants, namely sulphur dioxide (SO2), nitrogen dioxide (NO2), ground level ozone (O3), carbon monoxide (CO) and particulate matter below 10 micrometres (PM10) diameter.

Most of these pollutants come from sources such as industries, motor vehicles, open burning and power generation.

The concentrations of these five pollutants are measured in 52 automatic air quality stations throughout the country, mainly in industrial and urban areas.

The Star reported today that Malaysian Meteorological Department spokesman Dr Hisham Mohd Anip said the situation was likely due to weakening wind conditions, which may have caused the smoke to become stagnant.

“The dry weather has caused the dust and smoke to be suspended in the air. Strong wind for the past couple of weeks has dispersed them but the wind flow was probably weak yesterday,” the English daily quoted him as saying.

He added that the smoky condition was likely caused by local pollution, such as emissions from vehicles and factories.

via Air pollutant reading improves as smoke blows away – MSN Malaysia News.

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Pollution in nation worse last month than in May 2013

Air quality in May around the country was slightly worse than it was the same period last year, with air quality in the Yangtze River Delta deteriorating the most, according to the Ministry of Environmental Protection.

The ministry released air quality statistics for May for 74 major cities on Wednesday. These showed that the number of days with good air quality for the 25 cities in the Yangtze River Delta region was only 18 out of the total of 31 – five days fewer than in May of last year.

Of the six major pollutants that are included in the calculation of air quality, only the readings for carbon monoxide were unchanged compared with the 2013 figures for the region.

Concentrations of the five others – PM2.5, which is particulate matter that is smaller than 2.5 microns and penetrates the lungs; PM10; sulfur dioxide; nitrogen dioxide; and ozone – all increased.

“Stronger sunshine, warmer temperatures and burning straw within the region are the three major reasons for the area’s apparently deteriorated air quality,” said an official from the ministry who requested anonymity.

Nanjing, Changzhou and Zhenjiang, all in Jiangsu province in the Yangtze River Delta region, were among the top 10 cities with the worst air quality in May.

This is the first time that three cities at once from the region have made the monthly list. The previous months’ lists only saw two cities from the region at most at the same time.

The 13 cities from the Beijing, Tianjin and Hebei cluster had slightly better air quality in May compared with figures from May of last year, with three additional days with good air.

The situation for the nine cities from the Pearl River Delta region was virtually unchanged.

Nationwide, air quality in May grew slightly worse than in April and was worse than May of last year as well.

PM2.5, PM10 and ozone were the top three pollutants, with each accounting for about one-third of high- pollution days.

“The growing concentration of ozone is typical when the temperature gets higher, especially during the period from May to September,” said Chai Fahe, deputy head of the Chinese Research Academy of Environmental Sciences.

Chai said pollution caused by PM10 played a significant role in May, partly because of sandstorm weather that is normal in April and May. But he said the concentration of both PM2.5 and PM10 have actually decreased compared with the previous month’s figures because of vegetation growth at this time of year.

via Pollution in nation worse last month than in May 2013 – Headlines, features, photo and videos from ecns.cn|china|news|chinanews|ecns|cns.

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EU Air Pollution Limits Exceeded By 11 Member States During 2012, EEA Confirms — Germany, France, And Ireland Among Them

A significant number of notable EU member states exceeded air pollution limits in 2012, the European Environment Agency (EEA) recently revealed.

Included among those that exceeded the legal limits are Germany, France, Spain, Ireland, Sweden, and the Netherlands. Not exactly insignificant players in the region. The other member states to exceed the legal limits in 2012 were Austria, Belgium, Denmark, Luxembourg, Malta.

Somewhat humorously, despite the fact that the UK is currently under threat of EU legal action over its air quality, it’s among the member states that’s “on track to comply with the rules.” The “rules” in this case being the limits set by the National Emission Ceilings Directive (NECD). (Of course that’s not to say that the UK doesn’t have an air pollution problem.)

Business Green provides more:

“In an update to provisional figures initially released in March, the EEA examined four different pollutants: sulphur dioxide (SO2), nitrogen oxides (NOx), ammonia (NH3), and non-methane volatile organic compounds (NMVOC).The most commonly breached ceiling was for nitrogen oxide (NOx) emissions, with nine Member States exceeding their designated levels, primarily due to emissions from road transport. Denmark and Finland exceeded the limit for ammonia, along with Spain, which also emitted too much NOx. Luxembourg was the other country to breach the ceiling for two categories, also contravening NMVOC levels. All 27 Member States met the sulphur dioxide limits.”

As the EEA noted in a recent statement: “Air pollutant emissions have decreased over the last decades, but some are still being emitted above legal limits in the EU, in particular nitrogen dioxides.”

Presumably — with renewables and electric cars expected to gain market share in the EU over the next couple of decades — such emissions will begin to fall regardless of whether or not tighter regulations are put in place (and met), but hard to say.

With the impending end of the EU’s own fossil fuel reserves, though, perhaps other factors will lead to decreased levels of pollution…

via EU Air Pollution Limits Exceeded By 11 Member States During 2012, EEA Confirms — Germany, France, And Ireland Among Them | CleanTechnica.

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First Air Quality Pre-Emergency in Santiago

DUE TO POOR VENTILATION AND AIR CONDITIONS THE INTENDENCIA METROPOLITANA HAS DECLARED THE FIRST ENVIRONMENTAL PRE-EMERGENCY OF 2014.

SANTIAGO — High levels of pollution have always been a problem in the history of Santiago. The air gets trapped between the mountains and this poor ventilation causes bad air quality in the city. Currently, there are 11 monitoring stations that monitor environmental conditions in the region of Santiago.

This past Sunday, Monday and Tuesday, the Intendencia Metropolitana issued an “alert” status regarding the pollution in Santiago. Today, the Intendencia Metropolitana issued the first “pre-emergency” status of 2014. This means that the levels of pollution fall somewhere between 300-499 on the scale. In 2013, there were only 5 environmental alerts, but there never was a recorded pre-emergency. However, today there are high levels of pollution in Santiago and it is considered one of the most polluted days recorded.

The Intendencia Metropolitana prohibits vehicles with green stamped license plates ending in 9 and 0 from driving in the city today. Also, cars ending with license plates 3,4,5,6,7 are restricted. These vehicles are restricted between 7:30 a.m. and 9 p.m. on Wednesday, June 18 in Santiago, Puente Alto and San Bernardo.

The Intendencia Metropolitana also has banned outside sports activities, specifically those at schools and universities. This includes the possible restriction of P.E. classes. The Ministerio de Educación is in charge of monitoring these suspensions.

The general population is recommended to refrain from outside physical activity. Additionally, 1,215 sources of pollution in industrial firms and sites are prohibited. This includes the prohibition of burning wood stoves during this time. People with complaints about burning fires can contact the Seremi de Salud Metropolitana. This also affects those who were planning to grill some meat to enjoy an asado during the game.

Complaints about motorists driving with prohibited vehicles are invited to call the number on the Intendencia Metropolitana webpage. Chileans can visit the Intendencia Metropolitana webpage for further updates about the levels of pollution in Santiago.

via First Air Quality Pre-Emergency in Santiago | I Love Chile News.

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Air pollution linked to cognitive decline in later years

The tiny particles in vehicle exhaust and other sources of air pollution may hasten cognitive decline in older adults, according to a new U. S. study.

“We decided to examine the link between air pollution and cognitive function in older adults because there is growing evidence that fine particulate matter air pollution affects brain health and development, but relatively little attention has been given to what this means for the aging brain,” said Jennifer Ailshire, who co-wrote the report.

Ailshire is with the Center for Biodemography and Population Health and the Andrus Gerontology Center at the University of Southern California in Los Angeles.

She, along with Philippa Clarke of the Institute for Social Research at the University of Michigan, Ann Arbor, say that based on their results, improvements in air quality may be an important strategy for reducing age-related cognitive decline.

There has been some evidence that people living in more polluted areas have greater rates of cognitive decline, and the link is not explained by wealth or other social factors, the researchers point out in The Journals of Gerontology: Series B.

They gathered information from one wave of a large ongoing survey started in 1986, and focused their analysis on 780 participants who were 55 years of age or older at the time of the 2001/2002 survey.

Routine measurement of air pollution by census tract did not start until the late 1990s, they explain.

Cognitive function was measured by math and memory tests and participants got a score based on the number of cognitive errors they made.

Air pollution levels for each participant’s neighborhood were calculated using fine particulate levels reported by the U.S. EPA’s Air Quality System. Those pollution particles 2.5 microns or smaller (PM2.5) can travel deep into the lungs and enter the bloodstream, past research has shown.

Ailshire and Clarke found the average PM2.5 concentrations in the study participants’ environments were 13.8 micrograms per cubic meter, which is above the EPA’s air quality standard of 12 micrograms per cubic meter.

Then they compared the cognitive error scores to pollution levels and found that people living in high pollution areas, with 15 micrograms per cubic meter or more of PM2.5 had error scores one and a half times those of the participants who lived in low pollution areas with no more than 5 micrograms per cubic meter.

Poverty and other social factors as well as health problems can influence cognitive function, the authors note. And poorer neighborhoods tend to be more polluted. But after the researchers adjusted for education, employment, gender, marital status and several other factors, the differences in cognitive error rates remained.

“The emerging evidence showing a link between air pollution and cognitive function suggests air pollution may harm the brain as well as the heart and lungs,” Ailshire said in an email.

“Ideally,” she and Clarke wrote, they would want long-term data and more exact individual pollution exposures to assess the importance of PM2.5 in cognitive function.

Jennifer Weuve said the new research joins a growing number of large studies that suggest “higher exposures to everyday air pollution affect aging brains’ ability to think.”

Weuve, who was not involved in the study, is a researcher at the Rush Institute for Healthy Aging at Rush University Medical Center in Chicago.

Scientists “believe that particulate matter may affect cognitive function in older adults by its harmful effects on the cardiovascular system – which is connected to the brain through blood vessels – and possibly by directly acting on the brain itself,” Weuve said.

This type of air pollution is difficult to avoid. The most important action is the one we take as a society, by regulating the amount of pollution that gets emitted into our air, not by individual actions, she said.

“Short of confining oneself to an indoor space with filtered air, it is extraordinarily difficult (and absurd) to imagine any one person being able to, for example, stop the air pollution that emanates into his or her environment from an industrial plant tens or hundreds of miles away,” Weuve said.

“Although finding a link between the air we breathe on a daily basis and our long-term brain health is alarming, the good news is that we have made remarkable progress in the last decade in reducing levels of air pollution across the country, and there are efforts underway to further reduce air pollution,” Ailshire said.

Still, she added, the public should understand that there are health risks to living in polluted environments, particularly for older adults, and we should all be more aware of issues related to air quality.

via Air pollution linked to cognitive decline in later years | Reuters.

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Beijing air pollution complaints doubled

Air pollution complaints in Beijing, China doubled during the first five months of the year, according to the city’s environment authority. The increase in complaints regarding air quality in the city suggests that public anger within China, concerning the large cost of the nation’s fast economic growth, is rising.

On Friday, the Beijing Municipal Environmental Bureau announced that from January to May this year, a total of 12,599 complaints regarding air quality in the city were lodged by members of the public. This is a rise of 124 per cent compared to the same period last year, showing that residents are now more likely to express their anger over the environmental damage being done by Chinese industry.

The city of Beijing is regularly clouded by heavy smog as a result of heating, power plants and factories. As a result, it was named as the front line in the “war against pollution” by Premier Li Keqiang in March. The city has regularly been pictured on world news to illustrate the extent of China’s air pollution problems. As a result, there has been growing discontent amongst the Chinese public over the damage done to air water and soil by industry.

According to the environment bureau, smog caused by particulate pollution was the cause of 72.6 per cent of complaints regarding the environment between January and May. This is despite the government taking steps to reduce the severity of the country’s air pollution.

In a bid to show that the government is onside with those affected by smog and poor air quality, leaders have implemented several schemes to offer support. As well as working to reduce pollution from industry and road traffic, task forces, hotlines and rapid response teams have been created. Leaders are also asking the public to get involved with campaigns against companies that violate environmental laws.

The Beijing environmental bureau also made a second announcement, stating that this month has seen around 114 companies punished for violations of environmental law. This follows a week-long campaign that targeted firms in the car manufacturing, catering and car repair sectors.

via Beijing air pollution complaints doubled – Jun 17 2014 12:23 PM – Breaking News – Envirotech Online.

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