Ambient Air Quality Monitoring in the Vaal Priority Area · Lunga Ngcukana, Beverley Barnes, Seneca...

Ambient Air Quality Monitoring

in the Vaal Priority Area

Gregor Feig, Xolile Ncipha, Cheledi Tshehla, Desmond Mabaso,

Lunga Ngcukana, Beverley Barnes, Seneca Naidoo, Njabulo Masuku

29 October 2012

Templ ref: PPT-ISO-colour.001 Doc Ref no:CLS-AQI-SS-LEKGOTLA-2012-10-29

Location of Monitoring Stations

Diepkloof

Kliprivier

Three Rivers

Zamdela

Sebokeng

Sharpeville

Major Pollutant Sources • Diepkloof

– Residential, Traffic, Mining, Industrial

• Sharpeville

– Residential, Domestic Burning, Industrial

• Sebokeng

– Residential, Domestic Burning, Industrial

• Three Rivers

– Residential, Power Generation

• Zamdela

– Residential, Industry, Domestic Burning

• Kliprivier

– Industrial, Traffic

Instrumentation

PM10 PM2.5 SO2 O3 NOx CO Met BC

Diepkloof √ √ √ √ √ √ √

Sharpeville √ √ √ √ √ √ √

Sebokeng √ √ √ √ √ √ √

Three Rivers √ √ √ √ √ √ √

Zamdela √ √ √ √ √ √ √ √

Kliprivier √ √ √ √ √ √ √

PM10 Concentration 2007-2011

SO2 Concentration 2007-2011

Activities August 2011-

September 2012

Instrument and Data Status

Instrument Status

October

O3 NOx SO2 CO PM10 PM2.5 BC BTX

Kliprivier Working Working Working Working Working Working N/A Working

Rivers

Working Working Working Working Working Working N/A Working

Sharpeville Working Not-

Working

Working Working Working Working N/A Working

Sebokeng Working Working Working Working Working Working N/A Working

Diepkloof Working Working Working Working Working Working N/A Working

Zamdela Working Working Working Working Working Working Working Working

External Instrument Calibration O3 NOx SO2 CO BTX Met

Kliprivier √ √ √ √ √ √

Three Rivers √ √ √ √ √ √

Sharpeville √ √ √ √ √ √

Sebokeng √ √ √ √ √ √

Diepkloof √ √ √ √ √ √

Zamdela √ √ √ √ √ √

Data Availability October 2011-September 2012 Zamdela Sebokeng Sharpeville Three

Rivers

Kliprivier Diepkloof Month

Average

October 82.1 - 70.1 - 93.9 78.6 54.1

November 81.4 - 82.6 - 74.2 57.8 49.3

December 76.6 - 79.1 - 74.3 72.2 50.4

January 24.7 - 49.0 - 89.4 69.1 38.7

February 76.2 63.7 61.9 58.4 85.5 76.5 70.3

March 98.9 63.0 82.1 76.3 92.7 94.4 84.6

April 99.5 65.1 82.6 82.6 94.7 92.5 86.7

May 97.2 82.7 81.7 92.2 95.9 91.0 90.1

June 80.8 92.5 73.0 99.6 99.0 90.5 89.2

July 86.8 88.3 82.6 78.6 98.4 97.2 88.7

August 80.5 89.3 94.9 97.5 74.9 99.3 89.4

September 88.0 66.7 70.4 67.3 92.4 90.3 80.0

Station

Average

81.0 50.8 75.9 52.0 88.8 84.1 72.6

Compliance with Ambient Air

Quality Standards

Exceedances October 2011-

September 2012

(24 hour)

(24 Hour)

(10 Minute)

(Hour)

(24 Hour)

(Hour)

(8 hour)

(8 Hour)

Number

allowed 4 4 526 88 4 88 11 11

Zamdela 64 10 32 14 1 0 8 0

Rivers 7 3 0 2 0 0 5 0

Sharpeville 38 55 10 6 0 0 67 0

Sebokeng 1 11 0 1 0 0 9 0

Kliprivier 22 30 0 0 0 4 30 0

Diepkloof 4 2 0 0 0 0 2 0

Time Series Pollutant

Concentrations

PM10 Daily

PM2.5 Daily

SO2 Daily

Hourly Average NO2

Hourly Average Ozone

PM10, PM2.5, Black Carbon

Conclusion • Data availability in the Vaal is improving:

there is a sharpening of technical aspects ,

and improved service delivery

• Pollutants of concern are PM10, PM2.5 and

– When the PM standards get stricter many of

the stations will be in exceedance of the

NAAQS for a large portion of the year

• SO2, NO2 and CO are less of a concern

Questions?

Comments?

Other Activities for 2012/2013

• Take-over of Highveld Network in 2013

• Purchase of Black Carbon Instruments for

Vaal Network

Templ ref: PPT-ISO-colour.001

Doc Ref no:

Data Availability

Templ ref: PPT-ISO-colour.001 Doc Ref no:

Zamdela Sebokeng Sharpeville Three

Rivers

Kliprivier Diepkloof Average

August 77.3 - 54.0 - 88.6 66.1 47.6

September 80.4 - 55.9 - 93.4 84.0 52.3

October 82.1 - 70.1 - 93.9 78.6 54.1

November 81.4 - 82.6 - 74.2 57.8 49.3

December 76.6 - 79.1 - 74.3 72.2 50.4

January 24.7 - 49.0 - 89.4 69.1 38.7

February 76.2 63.7 61.9 58.4 85.5 76.5 70.3

March 98.9 63.0 82.1 76.3 92.7 94.4 84.6

April 99.5 65.1 82.6 82.6 94.7 92.5 86.7

May 97.2 82.7 81.7 92.2 95.9 91.0 90.1

June 80.8 92.5 73.0 99.6 99.0 90.5 89.2

July 86.8 88.3 82.6 78.6 98.4 97.2 88.7

August 80.5 89.3 94.9 97.5 74.9 99.3 89.4

September 88.0 66.7 70.4 67.3 92.4 90.3 80.0

Average

(oct 2011-

sep 2012

81 50.8 75.9 52.0 88.8 82.8 69.4

Ambient Air Quality Monitoring in the Vaal Priority Area · Lunga Ngcukana, Beverley Barnes, Seneca...

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