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Texas study finds PHEV use could increase ozone at night, decrease ozone during the day

Green Car Congress

A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours. The results are less clear in Dallas and Houston.

Ozone 218
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Houston-Galveston area to deploy 30 battery-electric delivery trucks

Green Car Congress

The Houston-Galveston Area Council (H-GAC) has partnered with the Center for Transportation and the Environment (CTE) and Smith Electric Vehicles Corporation (Smith Electric) to reduce vehicle emissions from delivery trucks in the Houston-Galveston region.

Houston 239
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Study: more stringent O3 and PM2.5 air pollution standards could save thousands of lives, greatly improve public health

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In “Estimated Excess Morbidity and Mortality Caused by Air Pollution above ATS Recommended Standards, 2011-2013,” published online in the August edition of Annals of the American Thoracic Society , researchers report on the annual health benefits of meeting more protective standards recommended by the ATS for O 3 and PM 2.5.

Pollution 150
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Study finds marine workboat engines staying in service two times longer than estimated by EPA; emissions reduction implications

Green Car Congress

This finding reveals important opportunities for clean air improvements, especially in large port cities such as New York and Houston. Most tugs are operating in locations near America’s ports which do not meet current federal health-based air quality standards. Elena Craft, EDF Senior Director.

Mariner 223
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EPA Proposes New Tougher Ground-Level Ozone Standards

Green Car Congress

Counties projected to violate proposed Primary 8-hour Ground-Level Ozone Standards in 2020. The United States Environmental Protection Agency has proposed the strictest standards to date for ground-level ozone. EPA is proposing an accelerated schedule for designating areas for the primary ozone standard.

Ozone 186
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Annual American Lung Association report shows continued progress in air quality, but more to be done

Green Car Congress

This year’s report finds that the majority of American cities most-polluted by ozone (smog) or year-round particle pollution (soot) have improved, showing continued progress in the cleanup of toxics under the requirements of the Clean Air Act. When ozone is inhaled, it irritates the lungs. 10 Most Ozone-Polluted Cities.

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Study: curbing diesel emissions could reduce mortality rates in big cities

Green Car Congress

Freight transportation is a pillar of the US national economy, but while long-haul trucks account for less than 6% of the vehicle miles traveled over US highways, they account for about 40% of the emissions of air polluting particulate matter and about 55% of nitrogen oxides, the precursor to ozone in the atmosphere, the study said.

Emissions 286