Friday September 21, 2018

Study suggests air pollution may damage brain

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smoke-712471_640A research study has found that long-term exposure to air pollution may lead to loss of white matter in the brain.

In the study, older women who lived in places with higher air pollution had significantly reduced white matter in the brain. White matter in the brain is made of axon cells, which enable the nerves to communicate.

“Investigating the impact of air pollution on the human brain is a new area of environmental neurosciences,” said lead author of the study Jiu-Chiuan Chen from Keck School of Medicine, University of Southern California in the US.

“Our study provides the convincing evidence that several parts of the ageing brain, especially the white matter, are an important target of neurotoxic effects induced by long-term exposure to fine particles in the ambient air.”

For the study, the researchers took brain scans of 1403 women who were 71 to 89 years old and used residential histories and air monitoring data to estimate their exposure to air pollution in the previous six to seven years.

The results suggest that ambient particulate air pollutants may have a deleterious effect on brain ageing.

The study was published in the journal Annals of Neurology.

-(IANS)

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Electric Vehicle Can Be The Best For Reducing Air Pollution: Survey

Since we invested in the technology we have often been told that we were making a big mistake betting on battery-powered vehicles.

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electric vehicles
People want electric vehicles to reduce air pollution: Survey. Flcikr

Eighty-seven per cent of the respondents believe that the need for reducing air pollution is the best reason to purchase an electric vehicle, a survey commissioned by Climate Trends and carried out by FourthLion Technologies showed on Thursday.

The survey was conducted online from August 21-24 among 2,178 Indian drivers, vehicle owners and those who plan to purchase, own or drive a vehicle in the next 10 years.

Vehicles account for about 24 per cent of India’s carbon emissions and is a major source for air pollution in several cities across the country.

According to a recent WHO report, 14 of the top 20 most polluted cities of the world are in India.

Delhi Pollution, electric vehicle
Air pollution can also damage your kidneys. wikimedia commons

The survey revealed that most drivers and vehicle owners are personally affected by poor air quality.

Seventy-six per cent say they along with their neighbours, friends or family suffer from poor air quality every day or are starting to show symptoms of being affected by air pollution.

Delhi seemed to be worst affected with 91 per cent of its respondents saying that they or people they know are suffering from poor air quality.

Similarly, high percentages were recorded in Hyderabad (78 per cent), Chennai (75 per cent), Mumbai (74 per cent), Bangalore (71 per cent), and Kolkata (70 per cent).

Drivers and vehicle owners say they are ‘much more likely’ to consider purchasing an electric vehicle after learning that ‘electric vehicles reduce air pollution through zero on-road emissions’ (72 per cent) and after learning that ‘recharging and driving an electric vehicle costs less per kilometre than fuelling and driving a petrol or diesel vehicle’ (71 per cent).

Electric Vehicles
The survey indicates very healthy awareness and potential willingness among the respondents to consider purchasing electric vehicles. Flickr

India is the third largest market for automobiles and the world’s largest market when it comes to two-wheelers.

Over four million internal combustion engine vehicles were sold in India in 2017, and 81 per cent of those sales (20 million units) came from the two-wheeler segment alone.

In comparison, according to data from the Society of Manufacturers of Electric Vehicles, less than a million electric vehicles were sold in India, of which 93 per cent were electric three-wheelers.

The survey indicates very healthy awareness and potential willingness among the respondents to consider purchasing electric vehicles.

Also Read: Air Pollution Not Fatal But Could Reduce Life Expectancy By A Year

However, the respondents identified the lack of easily accessible charging infrastructure (59 per cent) and limited driving range on current battery packs (46 per cent) as their biggest objection towards adopting one.

“Since we invested in the technology we have often been told that we were making a big mistake betting on battery-powered vehicles. And today with the world transitioning to the new normal, we are recognized as pioneers in electric vehicles,” Mahindra Group Chairman Anand Mahindra said.

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