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Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

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A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. Emissions Health Personal Transit' Platt et al.

Pollution 362
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EPA, NIEHS and HHS launch challenge to develop personal air pollution and health sensors

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The MAMH challenge offers awards for the development of a personal, portable, near-real-time, location-specific system to monitor and report air pollutants and a person’s physiological response to pollution.

Pollution 231
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Study finds association of pollution with increased risk of psychiatric disorders

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A new study led by University of Chicago researchers finds an association between exposure to environmental pollution and an increase in the prevalence of neuropsychiatric disorders. For the Danish cohort, the team studied study 4 psychiatric disorders: bipolar disorder, schizophrenia, personality disorder, and depression.

Pollution 259
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Smartphones and sensors as personal, real-time pollution monitors

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Air pollution varies widely over the course of a day and by location, even within the same city. Now scientists, reporting in the ACS journal Environmental Science & Technology , have used smartphone and sensing technology better to pinpoint where and when pollution is at its worst. Nieuwenhuijsen et al. Nieuwenhuijsen et al.

Pollution 150
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Yale study finds asphalt a significant source of air pollution, especially on hot, sunny days

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A new study now finds that asphalt is a significant source of air pollutants in urban areas, especially on hot and sunny days. Yale researchers found that common road and roofing asphalts produced complex mixtures of organic compounds, including hazardous pollutants, in a range of typical temperature and solar conditions.

Pollution 337
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NUS researcher links air pollution to increased residential electricity demand

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The reasons were two-fold: (i) increased air pollution led to households staying indoors more to mitigate the pollution impact; and (ii) PM 2.5 pollution led to the closing of windows, and running of air-conditioners and air purifiers more intensively either to reduce indoor particle levels or provide relief from indoor heat.

Pollution 275
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Portable sensors enable monitoring of pollution on smart phones; inferring pollution maps with greater granularity

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Boxes represent pollution reading locations during that window. Computer scientists at the University of California, San Diego have built a portable pollution sensors that transmit transmit their air quality readings to smart phones, allowing users to monitor air quality in real time. Nikzad et al. Click to enlarge. Click to enlarge.

Pollution 236