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Study: ozone levels higher across China than in other countries tracking the air pollutant

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In China, people breathe ozone-laden air two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new international study published in Environmental Science & Technology Letters. 2017 for one ozone metric. The inset shows ozone trends in Beijing (red) and Los Angeles (blue).

Ozone 199
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Study quantifies impact of oil and gas emissions on Denver’s ozone problem

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The first peer-reviewed study to directly quantify how emissions from oil and natural gas (O&NG) activities influence summertime tropospheric ozone (O 3 ) pollution in the Colorado Front Range confirms that chemical vapors from oil and gas activities are a significant contributor to the region’s chronic ozone problem.

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EPA updates VOCs standards for oil and gas storage tanks

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The US Environmental Protection Agency (EPA) issued final updates to its 2012 volatile organic compounds (VOCs) performance standards for storage tanks used in crude oil and natural gas production and transmission. Storage tanks that emit 6 or more tons of VOCs a year must reduce emissions by 95%.

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FCA recalls 850,000+ gasoline vehicles due to problem with catalytic converters

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NO x emissions in California are the most important contributor to ambient ozone and a key contributor to fine particulate matter pollution (PM 2.5 NO x emissions in California are the most important contributor to ambient ozone and a key contributor to fine particulate matter pollution (PM 2.5 2012: Q2 2019.

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EPA pushes back projected release of proposed Tier 3 light-duty vehicle emissions regulations to July

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The US Environmental Protection Agency (EPA) has pushed back its projected release of the Notice of Proposed Rulemaking (NPRM) for Tier 3 light-duty vehicle emission and fuel standards to July 2012. Earlier, the projected date was March 2012. The Tier 3 standards will succeed the current Tier 2 requirements.

EPA 218
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California ARB soliciting research suggestions for FY 2012-2013 plan; sustainable communities, behavior, pollutant exposure, air pollution science, GHG targets

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The California Air Resources Board (ARB) is soliciting research suggestions for the Fiscal Year 2012-2013 Annual Research Plan in the form of brief conceptual descriptions that address specified research gaps and support the Board’s ongoing regulatory and policy priorities. The deadline to submit research concepts is 31 January 2012.

Pollution 231
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ARB posts discussion draft of new proposed mobile-source emissions reduction strategy through 2030; Advanced Clean Cars 2 regulation

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proposed strategy for further regulation and reduction of mobile source—cars, trucks, and off-road equipment—emissions. ARB staff developed this strategy using a multi-pollutant scenario planning tool ( Vision 2.0 ) that quantifies changes in ozone and PM 2.5 Vision 2.0 Vision 2.0 Click to enlarge. Passenger vehicles.

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