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Air Quality 13 th May 2009 WCBC Air Quality Strategy Sarah Evans, Senior EHO Paul Campini, Technical Officer. National Air Quality Strategy (NAQS) Regulates Benzene - Sulphur Dioxide 1,3-Butadiene - Particulates Carbon Monoxide Lead Nitrogen Dioxide - Ozone. Air Quality Update.
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Air Quality 13th May 2009 WCBC Air Quality Strategy Sarah Evans, Senior EHO Paul Campini, Technical Officer
National Air Quality Strategy (NAQS) Regulates Benzene- Sulphur Dioxide 1,3-Butadiene - Particulates Carbon Monoxide Lead Nitrogen Dioxide- Ozone Air Quality Update
Minor constituent of petrol. Significantly reduced by catalytic converters. Chronic effects. Levels are very low in Wrexham Benzene
Nitrogen Oxide is produced from cars and industrial process Rapidly oxidised to NO2 in the air Respiratory effects. No exceedences in Wrexham Nitrogen Dioxide (NO2)
Produced by burning fossil fuels. Wrexham site used for UK mapping and future predictions. Respiratory effects. No exceedences in Wrexham. Sulphur Dioxide (SO2)
Caused by combustion, chemical reactions and suspended solids (e.g. Saharan Sand). Formed in many different sizes. Respiratory effects. No exceedences in Wrexham. Particulates (PM10)
Formed by complex reactions in the atmosphere. Not included in the regulations. Respiratory effects. Indicative monitoring carried out in Wrexham. Ozone (O3)
Emitted by petrol and diesel vehicles. Also by synthetic rubber manufacturers. Chronic effects. Not monitored for in Wrexham. 1,3 - Butadiene
Caused by inefficient fuel combustion, particularly petrol. Respiratory effects. No longer monitored for in Wrexham. Carbon Monoxide
Main source used to be petrol. Main source now industry. Harmful. Not monitored for in Wrexham. Lead
Continuous (automatic) Monitoring Types of Monitoring Isycoed (St Paul’s) WCBC owned site Victoria Road AURN Site
Passive (non-automatic) Monitoring Types of Monitoring
Nitrogen Dioxide (NO2): Monitoring Locations
Others Monitoring Locations
No exceedences of NAQS objectives since came into force, hence no Air Quality Management Area’s (AQMA). Gas supply introduced into Llay prior to Regs coming into force. Statutory requirement for annual reports to Welsh Assembly Government (WAG). All reports (9) to date accepted by WAG. Monitoring Results
New report being finalised. No exceedences. Monitoring Results
Areas being carefully monitored: Grosvenor Road. Rhostyllen Rbt. New areas monitored at: Smithfield Road (As of April ’09). Future areas that may need monitoring: New access roads to Industrial Estate. Monitoring Results
Member of Welsh Air Quality Forum (WAQF) www.welshairquality.co.uk Set up in 1994. All 22 Welsh Authorities are members. Website copied by Scotland, Northern Ireland and Gibraltar. Administered by AEA Environment and Energy Planning applications also commented on for Air Quality. WAQF
Ongoing review of monitoring sites. Update air quality section of www.wrexham.gov.uk Continue to provide annual reports to WAG. Air Quality Strategy: Future