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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.

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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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California’s latest greenhouse gas data shows that while the state continues to stay below its 2020 target for emissions, there is much more work to do to achieve carbon neutrality by 2045. California statewide GHG emissions dropped below the 2020 GHG Limit in 2016 and have remained below the 2020 GHG Limit since then.

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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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Annual average concentrations of fine particulates from US sources of combustion emissions from (a) electric power generation; (b) industry; (c) commercial and residential sources; (d) road transportation; (e) marine transportation; (f) rail transportation; (g) sum of all combustion sources; (h) all sources. Source: MIT. Click to enlarge.

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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.

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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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The California Air Resources Board (ARB) will host a public workshop to discuss regulatory concepts to reduce NO x emissions from new on-road heavy-duty vehicles greater than 10,000 pounds gross vehicle weight rating. The workshop will be available via webcast for those unable to attend in person.

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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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Yale study finds asphalt a significant source of air pollution, especially on hot, sunny days

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Asphalt is a near-ubiquitous substance—it’s found in roads, on roofs and in driveways—but its chemical emissions rarely figure into urban air quality management plans. Asphalt’s life cycle and temperature-dependent emissions. (A) Emissions rose markedly with moderate solar exposure (e.g., —Khare et al.

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