Global Guidelines Ozone 
Green Car Congress
APRIL 11, 2019
NO 2 is just one component of air pollution, which is made up of many pollutants (including particulate matter, ozone, carbon monoxide), which are known to have numerous adverse effects on health. The researchers estimate that most children lived in areas below the current WHO guideline of 21 parts per billion for annual average NO 2.
Green Car Congress
APRIL 30, 2010
The US, Canada, and Mexico have submitted a proposal to strengthen climate protection under the Montreal Protocol— the international treaty that phases out the production of a number of substances responsible for ozone depletion. The proposal targets the production and use of HFCs, a group of “super” greenhouse gases. Source: IGSD.
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Green Car Congress
AUGUST 18, 2015
Methane, the key constituent of natural gas, is a potent GHG with a global warming potential more than 25 times greater than that of carbon dioxide. EPA also is issuing draft Control Techniques Guidelines (CTGs) for reducing VOC emissions from existing equipment and processes in the oil and natural gas industry.
Green Car Congress
JUNE 3, 2010
In this sense, the “business-as-usual” projections equal the “with measures” scenario called for under the UNFCCC Guidelines for Annex 1 Communications. If not aggressively phased out, HFCs could contribute up to one-third or more of total global warming. US Fifth Climate Action Report. Calls for rapid action on HFCs.
Green Car Congress
FEBRUARY 5, 2015
MARPOL Annex VI sets limits on NO x and SO x emissions from ship exhaust, and prohibits deliberate emissions of ozone-depleting substances. Annex VI defines two sets of emission and fuel quality requirements: global requirements; and. more stringent requirements applicable to ships in Emission Control Areas (ECA). Earlier post.).
Green Car Congress
SEPTEMBER 25, 2021
New WHO has issued new Global Air Quality Guidelines (AQGs) that reduce levels of key air pollutants, some of which also contribute to climate change. Since WHO’s last 2005 global update, there has been a marked increase of evidence that shows how air pollution affects different aspects of health. Source: WHO.
Green Car Congress
FEBRUARY 11, 2020
Daily exposure to ground level ozone in cities worldwide is associated with an increased risk of death, according to the largest study of its kind, published in an open-access paper in The BMJ. Ground level ozone is a highly reactive gas commonly found in urban and suburban environments, formed when pollutants react in sunlight.
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