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

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Consumer products such as shampoo, cleaning products and paint now contribute as much to emitted volatile organic compounds (VOCs) in cities as tailpipe emissions from vehicles, according to a new study led by NOAA. Total VOC emission factors for end uses of petrochemical sources in the study. McDonald et al.

Pollution 264
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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.

Pollution 337
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NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

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In California’s Los Angeles Basin, levels of volatile organic compounds (VOCs) pollutants have decreased by about 98% since the 1960s, even as area residents now burn approximately three times as much gasoline and diesel fuel. This indicates that the main VOC source in the LA basin is likely gasoline vehicle emission.

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Volvo Trucks awarded $21.7M from US EPA and South Coast AQMD to deploy 70 Class 8 VNR Electric trucks

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Combined with the other 25 truck deployments through the Volvo LIGHTS project, Volvo Trucks is committed to delivering nearly 100 VNR Electric trucks to the region for zero-emission freight transport. The 70 Volvo VNR Electric trucks deployed through this grant are anticipated to provide lifetime emission reduction benefits in excess of 152.63

Volvo 186
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Researchers fully characterize reaction that affects ground-level ozone formation; a small but significant impact on predictive models

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The two combine in the atmosphere to make either nitric acid or peroxynitrous acid; the so-called branching ratio of these two chemicals is important in models of ozone production. This means less of the hydroxyl radical and nitrogen dioxide go away, leading to proportionately more ozone, mostly in polluted areas, Okumura said.

Ozone 210
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Transient Plasma Systems says advances are bringing plasma ignition technology closer to commercialization

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Advanced ignition technologies, such as those offered by TPS, have been widely recognized as enablers to achieving higher combustion efficiency and lower emissions for gasoline-powered engines. In particular, TPS technology offers a groundbreaking approach to reducing emissions from combustion engines and improving the environment.

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California workshop on hydrogen and fuel cells in ports

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This workshop is the follow-up to the Hydrogen and Fuel Cells in the Ports Workshop 2016, held in Port of Los Angeles. Areas of California suffer environmental conditions that cause breathing and heart-related health problems and health costs.