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New Mexico adopts Clean Cars Rule

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The coordinated package of regulations will reduce emissions of greenhouse gases and ozone- and smog-causing pollutants from new passenger cars, trucks, and SUVs starting in model year 2026.

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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

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The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. NO x is a precursor for both ground level ozone and secondary PM 2.5 Source of data: US EPA (2019). Chart: MECA.

Emissions 291
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MIT team proposes SCR emission control for hybrid aviation turbines; reducing NOx by 95%

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At cruising altitude, airplanes emit a steady stream of NO x into the atmosphere, where the chemicals can linger to produce ozone and fine particulates. Now, MIT engineers are proposing using an ammonia-based selective catalytic reduction (SCR) system that could result in an approximately 95% reduction in NO x emissions in exchange for a ~0.5%

MIT 268
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Rice/EPA study finds ground-level ozone falling faster than CMAQ model predicted

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Researchers from Rice University and the US Environmental Protection Agency (EPA) report in a paper in the journal Atmospheric Chemistry that particularly in Northeastern cities, ozone levels dropped even beyond what was anticipated by cutting emissions of NO x from 2002 to 2006. —Daniel Cohan, co-author. Earlier post.).

Ozone 218
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Obama Administration withdraws proposed rulemaking on strengthened ozone standards

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In a statement released this morning, President Barack Obama said he has requested that US Environmental Protection Agency (EPA) Administrator Lisa Jackson withdraw the agency’s draft Ozone National Ambient Air Quality Standards (NAAQS) rulemaking. Earlier post.) National Ambient Air Quality Standards (NAAQS).

Ozone 259
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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 also proposing to set a separate “secondary” standard to protect the environment within the range of 7-15 ppm-hours.

Ozone 186
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New study puts air-pollution related deaths in India in 2019 at 1.67 million

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billion people, according to Landrigan, whose research was funded in part by UN Environment Programme. and that due to ambient ozone pollution increased by 139.2%. The consequences will be long-lasting without efforts to reduce air pollution in the nation of 1.35 It is also having a profound effect on the next generation of Indians.

Pollution 321