Sunday May 27, 2018

Effect of Air Pollution: Escalates Mortality Risk, Besides Causing Deadly Diseases like Lung and Kidney Cancer

Air pollution can increase the risk of death from kidney, bladder and colorectal cancer besides causing lung cancer

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Effect of Air pollution
Air pollution may lead to deadly diseases like lung and kidney cancer. Pixabay.
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London, Nov 1: Air pollution can increase the risk of death from kidney, bladder and colorectal cancer besides causing lung cancer, a study has showed.

According to researchers, air pollution represents a complex mixture of a broad range of carcinogenic and mutagenic substances that may play a role in chronic systemic inflammation, oxidative stress and DNA damage in tissues that could ultimately prove fatal.

“This research suggests that the effect of air pollution was not associated with death from most non-lung cancers, but the associations with kidney, bladder and colorectal cancer deserve further investigation,” said lead author Michelle Turner, researcher at the Barcelona Institute of Global Health (ISGlobal) in Spain.

effect of Air Pollution
The effect of Air Pollution is deadly, causing non lung cancers as well. Pixabay.

For the study, published in the journal Environmental Health Perspectives, the team included more than 600,000 adults in the US and examined associations of mortality from cancer at 29 sites with long-term residential exposure to three ambient pollutants: PM2.5, nitrogen dioxide (NO2) and ozone (O3).

ALSO READ: Air Pollution Expected to cause 60000 deaths by 2030

Over 43,000 non-lung cancer deaths were registered among the participants. PM2.5 was associated with mortality from kidney and bladder cancer, with a 14 and 13 per cent increase respectively, for each 4.4 µg/m3 (microgram) increase in exposure.

In turn, exposure to NO2 was associated with colorectal cancer death, with a 6 per cent increase per each 6.5 ppb (parts per billion) increment.

No significant associations were observed with cancer at other sites. (IANS)

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Air Pollution: WHO Releases List of The Best And Worst Cities

90% of world's population breathes badly polluted air: WHO

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Air Pollution
WHO releases a list of most and least polluted cities. Pixabay

Nine out of every 10 people on the planet breathe air that contains high levels of pollutants and kills seven million people each year, according to a new World Health Organization (WHO) study released on Wednesday.

The study is an analysis of what the WHO says is the world’s most comprehensive database on ambient air pollution. The organisation collected the data from more than 4,300 cities and 108 countries, reports CNN.

People in Asia and Africa face the biggest problems, according to the study.

More than 90 per cent of air pollution-related deaths happen there, but cities in the Americas, Europe and the Eastern Mediterranean also have air pollution levels that are beyond what the WHO considers healthy.

The new WHO data show that US cities on the more polluted side of the list include Los Angeles, Bakersfield and Fresno, California; Indianapolis; and the Elkhart-Goshen area of Indiana.

Air Pollution.
Air Pollution. Pixabay

Peshawar and Rawalpindi in Pakistan, have some of the highest particulate air pollution levels in the database. Varanasi and Kanpur in India; Cairo; and Al Jubail, Saudi Arabia, also show higher levels.

“I’m afraid what is dramatic is that air pollution levels still remain at dangerously high levels in many parts of the world,” CNN quoted Maria Neira, director of the WHO’s Department of Public Health, Environmental and Social Determinants of Health, as saying.

“No doubt that air pollution represents today not only the biggest environmental risk for health, but I will clearly say that this is a major, major challenge for public health at the moment and probably one of the biggest ones we are contemplating.”

Particle pollution, a mix of solid and liquid droplets in the air, can get sucked into and embedded deep in your lungs when you breathe. That can lead to health conditions including asthma, lung cancer, heart disease, stroke and chronic obstructive pulmonary disorder (COPD), according to the study.

Also Read: Air Pollution And Its Effects On Our Health

These outdoor particulates — including sulphate, nitrates and black carbon — are largely created by car and truck traffic, manufacturing, power plants and farming. In total, air pollution caused about 4.2 million deaths in 2016, it added.

“Many of the world’s megacities exceed WHO’s guideline levels for air quality by more than five times, representing a major risk to people’s health,” Neira said. This is “a very dramatic problem that we are facing now”.

Cleaner air accounts for in cities like like Wenden, Arizona (population 2,882), or Cheyenne, Wyoming (population 64,019).

The Eureka-Arcata-Fortuna area of California; Battlement Mesa, Colorado; Wasilla, Alaska; Gillette, Wyoming; and Kapaa, Hawaii, are all on the cleaner-air list.

One of the bigger US cities with cleaner air is Honolulu, according to the WHO data.  (IANS)