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1 Air Quality 13 th May 2009 WCBC Air Quality Strategy Sarah Evans, Senior EHO Paul Campini, Technical Officer.

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Presentation on theme: "1 Air Quality 13 th May 2009 WCBC Air Quality Strategy Sarah Evans, Senior EHO Paul Campini, Technical Officer."— Presentation transcript:

1 1 Air Quality 13 th May 2009 WCBC Air Quality Strategy Sarah Evans, Senior EHO Paul Campini, Technical Officer

2 2 Air Quality Update National Air Quality Strategy (NAQS) Regulates –Benzene - Sulphur Dioxide –1,3-Butadiene - Particulates –Carbon Monoxide –Lead –Nitrogen Dioxide - Ozone

3 3 Benzene Minor constituent of petrol. Significantly reduced by catalytic converters. Chronic effects. Levels are very low in Wrexham

4 4 Nitrogen Dioxide (NO 2 ) Nitrogen Oxide is produced from cars and industrial process Rapidly oxidised to NO 2 in the air Respiratory effects. No exceedences in Wrexham

5 5 Sulphur Dioxide (SO 2 ) Produced by burning fossil fuels. Wrexham site used for UK mapping and future predictions. Respiratory effects. No exceedences in Wrexham.

6 6 Particulates (PM 10 ) Caused by combustion, chemical reactions and suspended solids (e.g. Saharan Sand). Formed in many different sizes. Respiratory effects. No exceedences in Wrexham.

7 7 Ozone (O 3 ) Formed by complex reactions in the atmosphere. Not included in the regulations. Respiratory effects. Indicative monitoring carried out in Wrexham.

8 8 1,3 - Butadiene Emitted by petrol and diesel vehicles. Also by synthetic rubber manufacturers. Chronic effects. Not monitored for in Wrexham.

9 9 Carbon Monoxide Caused by inefficient fuel combustion, particularly petrol. Respiratory effects. No longer monitored for in Wrexham.

10 10 Lead Main source used to be petrol. Main source now industry. Harmful. Not monitored for in Wrexham.

11 11 Types of Monitoring Continuous (automatic) Monitoring Victoria Road AURN Site Isycoed (St Paul’s) WCBC owned site

12 12 Passive (non-automatic) Monitoring Types of Monitoring

13 13 Monitoring Locations

14 14 Monitoring Locations Nitrogen Dioxide (NO 2 ): Grosvenor RoadCrown BuildingsRedwither Tower Plas MadocCeiriog SchoolGardden View Hugmore LaneOld Farm RoadMold Road Chester RoadHolt RoadHolyhead Road The SycamoresRhostyllen RbtKings Street

15 15 Monitoring Locations Others Sulphur DioxideBenzeneOzone LlayGrosvenor RoadChirk BrymboRhos Chirk

16 16 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

17 17 Monitoring Results New report being finalised. No exceedences.

18 18 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

19 19 WAQF Member of Welsh Air Quality Forum (WAQF) –www.welshairquality.co.uk –Set up in –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.

20 20 WAQF

21 21 Air Quality Strategy: Future Ongoing review of monitoring sites. Update air quality section of Continue to provide annual reports to WAG.


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