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Rice University team links PM2.5 and ozone levels with cardiac arrest

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A team from Rice University and the Houston Fire Department EMS has found a direct correlation between out-of-hospital cardiac arrests (OHCA) and levels of air pollution and ozone. The research, based on a massive data set unique to Houston, was published this month in the American Heart Association journal Circulation.

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

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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.

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

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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.

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Study finds paved surfaces in Houston worsen air quality

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Paved surfaces in the Houston area keep the city warmer than more natural surfaces. ““The very existence of the Houston area favors stagnation.” The research team combined extensive atmospheric measurements with computer simulations to examine the impact of pavement on breezes in Houston. Credit: UCAR.

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EPA Proposes New Tougher Ground-Level Ozone Standards

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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. Source: EPA.

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

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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.

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NASA satellite images highlight US air quality improvement with reduction of NO2

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After ten years in orbit, the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite has been in orbit sufficiently long to show that people in major US cities are breathing less nitrogen dioxide. New NASA satellite images released this week demonstrate the reduction of air pollution across the US.

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