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Study explores mechanisms of effects of personal ozone exposure on blood pressure and vascular endothelial function

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A research team in China conducted a longitudinal panel study among 43 non-smoking college students in Shanghai to explore the effects of personal ozone exposure on blood pressure (BP), vascular endothelial function, and the potential molecular mechanisms. —Xia et al. doi: 10.1021/acs.est.8b03044. 8b03044.

Ozone 230
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EPA awards $6M in research funding to improve air quality models

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The US Environmental Protection Agency (EPA) announced $5,959,842 million in research funding to nine institutions to improve air quality models used to simulate ozone, particulate matter (PM), regional haze, air toxics, and emerging pollutants.

EPA 207
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Using Ozone-Generated Bubbles to Remove Oil Sheen and Contaminants from Water

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A University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters. Emerging contaminants, such as wastewater polluted with medications and personal care products.

Ozone 199
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Study of 60M US seniors strengthens link between air pollution and premature death

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and of 10 ppb in ozone were associated with increases in all-cause mortality of 7.3% (95% confidence interval [CI], 7.1 When the analysis was restricted to person-years with exposure to PM 2.5 of less than 12 μg per cubic meter and ozone of less than 50 ppb, the same increases in PM 2.5 and 1.1% (95% CI, 1.0

Pollution 265
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Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

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tons per person to 10.7 tons per person in 2018, a 24% decrease. in 2018 (2000-2018 average year-over-year increase is 6.8%), continuing the increasing trend as they replace Ozone Depleting Substances (ODS) being phased out under the 1987 Montreal Protocol. Emissions from high-GWP gases increased 2.3%

2020 221
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California ARB hosting public workshop to discuss regulatory concepts for the Heavy-Duty “omnibus” Low NOx rulemaking

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This measure is critical for attaining federal health-based air quality standards for ozone in 2031 in the South Coast and San Joaquin Valley air basins, and fine particulate matter (PM 2.5 ) standards in the next decade. The workshop will be available via webcast for those unable to attend in person. Warranty corrective action.

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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. But volatile chemical products used in common solvents and personal care products are literally designed to evaporate.

Pollution 264