Pollution is reversed: levels of nitrogen dioxide air pollution plunge.

15 before-and-after images that show how we're transforming the planet

Greenpeace activists float a picture of Mary Poppins wearing a gas mask in front of the Houses of Parliament to highlight that London has breached its annual air pollution limit for 2017 in just five days at Parliament Square on January 6, 2017 in London, England. By law, hourly levels of toxic nitrogen dioxide must not be more than 200 micrograms per cubic metre more than 18 times in a whole year, but late on January 5th this limit was broken on Brixton Road in Lambeth.  (Photo by Chris J…

Greenpeace activists float a picture of Mary Poppins wearing a gas mask in front of the Houses of Parliament to highlight that London has breached its annual air pollution limit for 2017 in just five days at Parliament Square on January 6, 2017 in London, England. By law, hourly levels of toxic nitrogen dioxide must not be more than 200 micrograms per cubic metre more than 18 times in a whole year, but late on January 5th this limit was broken on Brixton Road in Lambeth. (Photo by Chris J…

London Is a Worse Nitrogen Dioxide Polluter Than Beijing | An E.U.-mandated shift to diesel cars has sent London's NO2 emissions through the roof. "It's a public-health catastrophe," says one prominent campaigner | TIME.com

London Is a Worse Nitrogen Dioxide Polluter Than Beijing

London Is a Worse Nitrogen Dioxide Polluter Than Beijing | An E.U.-mandated shift to diesel cars has sent London's NO2 emissions through the roof. "It's a public-health catastrophe," says one prominent campaigner | TIME.com

BIPM facility for dynamic generation of nitrogen dioxide in nitrogen mixtures in the range 1 µmol/mol to 15 µmol/mol.

BIPM facility for dynamic generation of nitrogen dioxide in nitrogen mixtures in the range 1 µmol/mol to 15 µmol/mol.

When sulfur dioxide, particulate matter, nitrogen dioxide and carbon monoxide decreased markedly month to month, so did deaths from emphysema, asthma and pneumonia. What can you do to breath cleaner air? Dr. Galante has powerful programs that will teach you the specific steps that will help you to become and stay healthier.

When sulfur dioxide, particulate matter, nitrogen dioxide and carbon monoxide decreased markedly month to month, so did deaths from emphysema, asthma and pneumonia. What can you do to breath cleaner air? Dr. Galante has powerful programs that will teach you the specific steps that will help you to become and stay healthier.

Did you know that trees help cleanse the air by intercepting airborne particles, reducing heat, and absorbing such pollutants as carbon monoxide, sulfur dioxide, and nitrogen dioxide? Happy #ArborDay!

A Tree's Importance and Environmental Benefit

Did you know that trees help cleanse the air by intercepting airborne particles, reducing heat, and absorbing such pollutants as carbon monoxide, sulfur dioxide, and nitrogen dioxide? Happy #ArborDay!

Nitrogen dioxide air pollution lessens in parts of US and Europe, increases in Middle East and parts of Asia

Nitrogen dioxide air pollution lessens in parts of US and Europe, increases in Middle East and parts of Asia

The trend map of the Persian Gulf shows the change in nitrogen dioxide concentrations from 2005 to 2014.

The trend map of the Persian Gulf shows the change in nitrogen dioxide concentrations from 2005 to 2014.

Parts of the capital have already breached EU hourly limits for nitrogen dioxide pollution which causes thousands of premature deaths each year London has already breached annual pollution limits j...

Parts of the capital have already breached EU hourly limits for nitrogen dioxide pollution which causes thousands of premature deaths each year London has already breached annual pollution limits j...

Let's use those vent fans!... 62 percent of households using gas burners without venting in the winter are routinely exposed to excessive levels of nitrogen dioxide, 9 percent to carbon monoxide and 53 percent to formaldehyde, gases that can trigger respiratory problems and aggravate asthma and cardiovascular disease, especially in young children and older adults.

Let's use those vent fans!... 62 percent of households using gas burners without venting in the winter are routinely exposed to excessive levels of nitrogen dioxide, 9 percent to carbon monoxide and 53 percent to formaldehyde, gases that can trigger respiratory problems and aggravate asthma and cardiovascular disease, especially in young children and older adults.

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