Tab. 1 Influenced measuring at CHMI stations in 2013

Code of the
measuring programme		 Locality Classification Measuring
method		 Pollutant Flag 199 Flag 652
Number % Number %
ALIB0 Pha4-Libuš1 B/S/R GRV PM10 62 33.9 61 33.3
ALIB0 ICP-MS As, Ni, Cd, Pb 6 3.3 77 42.5
ALIB5 GRV PM2.5 49 29.7 48 29.1
ALIB5 ICP-MS As, Ni, Cd, Pb 6 3.6 76 46.1
ALIBM GRV PM10 – – 119 33.2
JKOS0 Košetice2 B/R/AN-REG GRV PM10 – – 55 30.4
JKOS5 GRV PM2,5 – – 55 30.4
JKOSM IC SO2 – – 101 27.7
JKOS0 ICP-MS As, Ni, Cd, Pb     55 30.4
JKOS5 ICP-MS As, Ni, Cd, Pb 3 1.7 10 5.5
JKOSV Košetice3 B/R/AN-REG GC-VOC BZN – – 37 39.4
TFRB0 Frenštát pod Radhoštěm-bazén4 B/U/RC ICP-MS As, Ni, Cd, Pb – – 9 15
TFRBM GRV PM10 – – 28 9.5
TOZRA Ostrava-Zábřeh5 B/U/R RADIO PM10 6578 75.3 – –
Ostrava-Zábřeh RADIO PM2,5 6580 75.3 – –
UKRUA Krupka6 B/R/N-NCI RADIO PM10 83 1 – –
1 Building activity carried out in 2013 – cutting the nearest road and laying new asphalt surface.
2 From 8 April 2013 to about 18 July 2013 a pole was built in the premises of the Košetice Observatory.
3 From 8 April 2013 to about 18 July 2013 a pole was built in the premises of the Košetice Observatory, which was connected with the increased intensity of automobile traffic, the use of paints and varnishes and the use of petrol generators. These activities influence the increase of benzene and other VOC concentrations. On 25 April, 9 May, 11 July and 12 August the measurements were influenced by agricultural activities (chemical spraying, fertilizer spreading, harvesting, ploughing); the machines using the fuels causing the increased VOC concentrations were employed again.
4 In the second quarter of 2013 a playground was constructed near the station.
5 The increase of the number of exceedances of the daily limit value and the annual average concentration of PM10 in 2013 as against the values measured in the previous years was recorded in the locality Ostrava-Zábřeh due to the local influence of the measuring site by ongoing construction of road connection. The estimated contribution of this building activity to the annual average of PM10 is approx. 10 %, i.e. several micrograms. The number of exceedances of the daily limit value in other stations in Ostrava increased in 2013 as compared with the year 2012 by approx.10–15 %, in Ostrava-Zábřeh by 61 %.
6 Due to local influence in 2013 the station recorded the exceedance of the daily limit value for PM10. The number of days with exceedances of the value 50 µg.m-3 tolerated by the legislation is 35, the station, however, recorded 36 days with exceedances. It is probable, that without the local influence the exceedances would have not occurred, or the number of them would have been markedly lower.

 

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