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Country-wise ecosystem damage area for acidification in Europe, 1995-2010
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Data source of deposition-data used to calculate exceedances: EMEP/MSC-W
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Ozone inter-annual variations, SOMO35, 1996-2004
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Urban, traffic, and rural background stations vertical bars represent 10th and 90th percentiles.
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Change in CO emissions 1990-2008 (EEA member countries)
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The reported change in carbon monoxide (CO) emissions for each country, 1990-2008.
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Repairing our ozone layer
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In 1987, delegates from around the world signed the Montreal Protocol designed to protect the ozone layer by phasing out the production of a number of substances believed to be responsible for ozone depletion. This recent video illustrates the results of the Protocol, which is considered to be one of the most successful international environmental agreements.
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Ozone 2010 - Target value for the protection of vegetation
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In the air quality directive (2008/EC/50), the EU has set a target value and a long term objective value for ozone (O3) for the protection of vegetation. Target value: the AOT40 may not exceed 18000 (µg/m3) per hour in the period from 1 May to 31 July averaged over five years. Long term objective value: the AOT40 may not exceed 6000 (µg/m3) per hour in the period from 1 May to 31 July within a calendar year.
AOT40 (expressed in (μg/m3) ∙ hours) means the sum of the difference between hourly concentrations greater than
80 μg/m3 (= 40 parts per billion) and 80 μg/m3 over a given period using only the one-hour values measured
between 8.00 and 20.00 Central European Time (CET) each day. More information is provided in Annex VII of directive (2008/EC/50).
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Emissions of primary particles and secondary particulate matter precursors (CSI 003) - Assessment published Oct 2005
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Total EU-15 emissions of fine particles were reduced by 39% between 1990 and 2002. This was due mainly to reduction in emissions of the secondary particulate precursors, but also to reductions in primary PM 10 emissions from energy industries.
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Emissions of primary particles and secondary particulate matter precursors
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Ozone: fluctuations over 15 years
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This video shows the projected difference in the 'ozone hole' over the arctic between the year 2000 and 2015.
Source: Animation form 'Global animations'
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Creation of low level ozone
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HOW LOW LEVEL OZONE IS CREATED
Low level ozone pollution is often not given much consideration next to the depletion of the ozone layer.
However, it can damage health of humans, animals, trees and plants. In high quantities it also contributes to acid rain and the green house effect, as well as being partly responsible for photo chemical smog.
Car exhausts release nitrogen oxides into the atmosphere. Volatile Organic Compounds are released through chemical plants and products including solvents, paints and hairspray. These two chemicals react with each other and sunlight to create ozone.
In humans, ozone can cause lung tissue damage, and create high incidences of asthma and allergenic reactions.
Plants exposed to high ozone concentrations lose their chlorophyll and their food manufacturing abilities.
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Ozone 2010 - 8 hour mean target value for the protection of human health
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In the air quality directive (2008/EC/50), the EU has set a target value and a long term objective value for ozone (O3) for the protection of human health. Target value: the maximum daily eight-hour mean may not exceed 120 micrograms per cubic metre (µg/m3) on more than 25 days per calendar year averaged over three years. Long term objective value: the maximum daily eight-hour mean may not exceed 120 micrograms per cubic metre (µg/m3) within a calendar year.
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Agricultural area (in 1 000 km²) in EEA member countries for each exposure class
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Due to lack of detailed land cover data and/or rural ozone data Iceland and Norway are not included until 2006 and onwards. Switzerland have not been included in the analysis for the entire period 1996-2007 due to the same reasons. Turkey is not included in the analysis 1996-2008.
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