Search results for "air"

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  1. Ambient air quality

    Air pollution comes from both natural and human-made sources. The contaminant of most concern to human health in Canterbury/Waitaha is particulate matter (PM).

    What is particulate matter?

    PM is grouped into different size categories because size influences the impact PM has on health. Particles smaller than 10 microns are referred to as PM10, and those less than 2.5 microns, as PM2.5.

    There is a substantial body of evidence that shows breathing particulate matter is harmful to human health. P…

    https://www.ecan.govt.nz/your-region/plans-strategies-and-bylaws/what-we-know/air/ambient-air-quality/

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