Sentence examples for tiny pollution from inspiring English sources

Diesel is highly polluting, emitting far greater amounts of dangerous nitrogen dioxide and tiny pollution particles than petrol, and can cause cancer to heart attacks.

Over the course of a year, Beijing typically has about one-third more tiny pollution particles in the air than Hong Kong, said Alexis Lau, an atmospheric scientist at Hong Kong University of Science and Technology.

(Later, Weart explains, it was shown that the temporary cooling could also have been caused by humans -- through the release of vast sun-reflecting plumes of sulfates and other tiny pollution particles in the industrial boom after World War II: one human emission was canceling out another until clean-air laws began removing the cooling veil).

The tiny pollution particles, which are about 1/30th the average width of a human hair, are a health concern because when inhaled they can accumulate in the respiratory system.

Everywhere in Delhi, the air is thick with toxins, and levels of the tiniest pollution particles – linked to ailments from heart attacks and stroke to cancer, respiratory infections and even dementia – reach 17 times the recommended limits in some parts of the city.

WHO guidelines say average concentrations of the tiniest pollution particles - called PM2.5 - should be no more than 25 microgrammes per cubic metre.

Recently there were calls for a national standard for anti-pollution face masks as some on the market claim to filter out PM2.5, tiny particulate pollution which is considered dangerous, but are not effective.

Nitrogen releases from agriculture have other negative environmental effects, mixing with emissions from cars to create tiny particulate pollution that is harmful to humans.

Pollution research has mostly focused on urban areas, where air quality is historically worse, and on the tiniest of pollution particles from industrial sources, which are generally more dangerous because they can be inhaled more deeply into the lungs.

This army of zooplankton vacuum cleaners have, for millions of years, sucked Baikal through their digestive tracts, filtering bacteria and decomposing plants – and tiny specks of pollution.

The tiny particles of pollution pumped out of diesel exhausts have long been known to be very harmful to health, working their way deep into lungs and leading to heart attacks, strokes and cancers.