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Study finds pollution emitted near equator has biggest impact on global ozone

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Since the 1980s, air pollution has increased worldwide, but it has increased at a much faster pace in regions close to the equator. They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane.

Ozone 230
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New statistical method to detect ozone pollution hot spots and monitor instrument failure; combining PCA and MEWMA

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A new statistical method developed by researchers at KAUST (King Abdullah University of Science and Technology, Saudi Arabia) can detect abnormal ozone levels within large bodies of monitored data. The monitoring methods can quickly and accurately detect ozone anomalies—localized spikes in ozone concentration indicated by sensor data.

Ozone 150
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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.

Ozone 150
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CARB, NOAA, NASA and San Jose State University scientists team up to study ozone transported across Pacific

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As California continues to reduce local sources of ozone, ozone entering the state from the Pacific makes up a larger fraction of measured ozone levels. An ozonesonde is a balloon which measures ozone from the surface to more than 10 kilometers above the ground.

San Jose 150
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CARB fines Del Monte $2M for violations of OGV at Berth regulation

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Through routine audits, CARB discovered that Del Monte’s chartered fleet calling at the Port of Hueneme for 2015-2016 did not meet the operational time limits for at least 50% of its visits and did not reduce its auxiliary engine power generation by 50%. These reductions decrease air pollution and the mortality rate of endangered whales.

Ozone 321
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Imaging study: air pollution impairs function of blood vessels in lungs

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Air pollution impairs the function of blood vessels in the lungs, according to a study of more than 16,000 patients presented at EuroEcho-Imaging 2016. The study examined the effect of air pollution on pulmonary haemodynamics (blood flow) in a population and in individuals. Increases in PM 10 and PM 2.5

Pollution 150
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Decrease in air pollution associated with decrease in respiratory symptoms among children

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Decreases in ambient air pollution levels over the past 20 years in Southern California were associated with significant reductions in bronchitic symptoms in children with and without asthma, according to a study by researchers at the University of Southern California published in JAMA. Kiros Berhane, Ph.D., —Berhane et al.

Pollution 150