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EPA tightens ground-level ozone standard to 70 ppb

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issued its final rule revising the National Ambient Air Quality Standards (NAAQS) for ground-level ozone to 70 parts per billion (ppb) from 75 ppb to protect public health. Ground-level ozone forms when nitrogen oxides (NO x ) and volatile organic compounds (VOCs) react in the air. The US Environmental Protection Agency (EPA).

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EPA proposes tightening primary ozone standards to range of 65-70 ppb; final rule by October 2015

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Counties where measured ozone is above proposed range of standards, based on 2011-2013 monitoring data. Earlier this year, EPA staff had recommended the further reduction of this primary ozone standard from the current 75 ppb (parts per billion) to a revised level within the range of 70 ppb to 60 ppbā€”and preferably below 70 ppb.

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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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CARB approves $423M plan to mitigate harm from Volkswagen defeat devices; significant investments in heavy-duty vehicles and equipment sectors

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There is also money to reduce emissions at freight facilities, marine projects and light-duty vehicle charging. As required by the Consent Decree, total costs per vehicle must not exceed 75% for non-government owned vehicles and 100% for government owned vehicles. Staff proposes up to $1.35

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Study: 25% EV adoption would save US $17B annually from avoided climate change & pollution damages

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A new study led by researchers from Northwestern University projects that if electric vehicles replaced 25% of combustion engine cars currently on the road, the United States would save approximately $17 billion annually by avoiding damages from climate change and air pollution. The open-access paper is published in AGUā€™s journal GeoHealth.

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Tata Motors and MAHLE partner to develop a prototype Secondary Loop Mobile Air Conditioning System on a vehicle

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In the SL-MAC system, the alternative refrigerants first cool a secondary fluid/coolant, which in turn cools the air to comfortable temperatures inside the vehicle cabin. This is in contrast to the conventional mobile AC system, where the cabin air is directly cooled by the refrigerant HFC-134a, which is ozone safe but has a high GWP.

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

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Traditional ignition systems when used to enhance internal combustion engine (ICE) efficiency and lower emissions are handicapped with high energy consumption and poor durability leading to an unattractive cost of ownership. These vehicles have long lifetimes and will continue to occupy the roads next to clean EVs for years to come.