Tag Archives: PM – Particulate Matter

Possible hazardous air quality in county

Air quality in portions of Cochise County could be considered hazardous because of the potential for heavy smoke from three fires burning near Cananea, Mexico. Air quality in part is defined by measuring the amount of particulate matter (a measurement … Continue reading

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PM stands for Particular Matter

It is the term for particles found in the air including dust, dirt, soot, smoke and pollen.  Particles can be suspended in the air for long periods of time. Some are large or dark enough to be seen such as … Continue reading

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Air pollution worsens in southern Chilean city of Temuco

For residents of Temuco, the capital of Chile’s southern Araucanía Region, yesterday marked the sixth consecutive day of severe pollution warnings as the thick smoke-like haze bathing the city approached its worst level yet. Air quality stations exceeded the limit … Continue reading

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Particulate matter emissions: Trimmers and chainsaws are worse than highway traffic

Motorway maintenance workers are exposed to various harmful emissions. Surprisingly, motorised hand-held tools such as strimmers (string trimmers) and chainsaws, rather than motorway traffic, are responsible for the highest emissions of particulate matter. These are the conclusions of a study … Continue reading

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Changes in EPA Air Quality Standard will reduce “good” air days

Recent changes in one of the U.S. Environmental Protection Agency’s National Ambient Air Quality Standards will most likely reduce the number of days that the air in Pima County is categorized as “good” on the Air Quality Index. The changes … Continue reading

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Two Major Air Pollutants Increase in China

In the first three months of this year, levels of two major air pollutants increased by almost 30 percent here in the Chinese capital, over the same period in 2012, according to a report on Wednesday by a Chinese news … Continue reading

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UK air pollution: why are we only now waking up to this public health crisis?

When Justin Bieber collapsed last week at the O2 arena in London and was taken to a private clinic feeling “short of breath” and needing oxygen, the rumours started flying that he had had an asthma attack. They were denied … Continue reading

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Air pollution: breaches of legal limits continued through 2010 and 2011

Air pollutant emissions were above legal limits in eight Member States in 2011, preliminary data shows. In 2010, 12 Member States exceeded these limits, according to final official data reported under the European Union’s National Emission Ceilings (NEC) Directive. Several … Continue reading

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