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Harvard/Nanjing study: China’s war on PM2.5 pollution is causing more severe ozone pollution

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pollution is falling, harmful ground-level ozone pollution is on the rise, especially in large cities. Ozone is the main ingredient in smog and has been studied since it began choking cities in the US in the early 1950s. There was so much particulate matter in Chinese cities that it stunted the ozone production. Ke Li, Daniel J.

Ozone 262
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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.

Ozone 255
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Air pollution is the leading environmental cause of death worldwide according to the State of Global Air 2018 , the annual report and interactive website published by the Health Effects Institute (HEI). State of Global Air 2018. Population-weighted seasonal average ozone concentrations in 2016. State of Global Air 2018.

Pollution 218
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Study: consumer products overtake transportation as largest source of VOCs air pollution in cities

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The results, published in an open-access paper in the journal Science , suggest that the focus of efforts to mitigate ozone formation and toxic chemical burdens need to be adjusted, the authors suggested. Total VOC emission factors for end uses of petrochemical sources in the study. 1A) and sales data of volatile chemical products.

Pollution 264
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German-Chilean consortium investigating new ways of reducing arsenic in copper concentrates: ReAK

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Fraunhofer IWKS launched a first project in 2018, which brought together a consortium of numerous German and Chilean partners from both research and industry. Other project partners are also evaluating UV- and ozone-assisted as well as microbial oxidation processes. —Anna-Lisa Bachmann. —Anna-Lisa Bachmann.

Chile 243
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Study finds damage due to premature mortality from PM2.5 decreased >20% from 2008 to 2014

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GED (in $2018) attributable to economic sectors and their respective precursor pollutants (NH 3 , NO x , primary PM 2.5 , SO 2 , and VOCs). First, we update existing damage estimates with the most recent available comprehensive national emissions data: EPA’s 2014 National Emissions Inventory (NEI).

2008 223
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EPA and DOT issue final Phase 2 GHG and fuel efficiency rulemaking for medium- and heavy-duty trucks

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For example, when the standards are fully phased in, tractors in a tractor-trailer will achieve up to 25% lower CO 2 emissions and fuel consumption than an equivalent tractor in 2018. California to keep pushing for more stringent regulations. The California Air Resources Board (CARB) announced its support for the new Phase 2 MDHD rulemaking.

EPA 150