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Global study links daily exposure to ozone pollution to increased risk of death

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Ground level ozone is a highly reactive gas commonly found in urban and suburban environments, formed when pollutants react in sunlight. Recent reviews suggest that 80% of the world’s population in urban areas are exposed to air pollution levels above the WHO threshold. g/m 3 (WHO), 120 ?g/m g/m 3 (European Union directive), 140 ? (No

Ozone 243
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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Even so, during 2010-2014, people in parts of California, Arizona, Colorado, Texas, the Midwest and the Middle Atlantic still experienced more than 15 days a year in which ozone levels exceeded the US health-based air quality standard of 70 parts per billion (ppb) averaged over eight hours. Source: University of Leicester.

Ozone 255
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Study finds megacity traffic soot can reach high altitudes and be transported over long distances, contributing to global warming

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The conurbation of the metropolitan area of La Paz/El Alto is one of the fastest growing urban settlements in South America with the particularity of being located in a very complex terrain at a high altitude. An open-access paper on the work is published in the journal Atmospheric Environment.

Bolivia 247
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Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

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A new study provides the most detailed picture available to date of the global, regional, and local health impacts attributable to emissions from four transportation subsectors: on-road diesel vehicles; other on-road vehicles; shipping; and non-road mobile engines such as agricultural and construction equipment. of global ambient PM 2.5

Ozone 230
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Study: IMO low-sulfur fuel standards will decrease childhood asthma cases, premature deaths; climate tradeoffs

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from 35,000 parts per million (ppm) to 5,000 ppm. This marks the most significant improvement in global fuel standards for the shipping industry in 100 years, and is intended to achieve significant health benefits on a global scale. reduction of childhood asthma globally. reduction of childhood asthma globally.

Standards 170
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Study finds some improved cookstoves may emit more black carbon pollution than traditional mud cookstoves

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In addition, black soot released into the atmosphere is a major factor in global warming. They did the test in real homes as part of Project Surya, which quantifies the impacts of cleaner cooking technologies in a village in India. Praveen Puppala, Ramasubramanyaiyer Suresh, Lokendra Singh, Vivek K.

Pollution 231
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Study: 87% of world’s population in 2013 lived in areas exceeding WHO PM2.5 guidelines

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Between 1990 and 2013, global population-weighted PM 2.5 increased by 20.4%, driven by trends in South Asia, Southeast Asia, and China, according to the team’s findings. Additionally, the study found that the population-weighted mean concentrations of ozone increased globally by 8.9% were evident in most high income countries.

2013 150