Urban air quality is of major concern. The high density of population and of economic activities in urban areas results in increased emissions, ambient concentrations and exposure. The Structural Indicator for urban air quality is presented which comprises two sub-elements describing the annual variations in population weighted health-relevant concentrations of (1) ozone and (2) particulate matter (PM10) in ambient air in urban areas.
See Eurostat’s Quality Profiles for ozone: http://epp.eurostat.ec.europa.eu/portal/page/portal/structural_indicators/documents/en041_-_Air_pollution_-_ozone.pdf and for PM10: http://epp.eurostat.ec.europa.eu/portal/page/portal/structural_indicators/documents/en042_-_Air_pollution_-_particulate_matter.pdf.
micro gram /m3
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Showers require as little as a third of the water! However, this is true as long as you keep them under five minutes long. So be quick and use a shower timer to keep track of time next time you hop in!
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