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Measured Indicators, Measuring units, Methodologies for measurement
Manual sampling:
Measured Indicators: SO2 , NO2 , Pb, Cd, TSP, ФПЧ /10/, meteorological parameters
Measuring units: µg/m3 , mg/m3 , m/s, mm Hg, 0C.
The level gases of SO2 and NO2 in the atmospheric air are determined in accordance with BDS 17.2.4.17-83, BDS 17.2.4.22-83.
The content of dust is determined according to method in accordance with BDS 17.2.4.20-83, the fine particulate matter - BDS 17.2.4.20-83. The content of lead и cadmium is determined according to the method of atomic absorption in accordance with methodology approved by the minister of MOEW.
Automaed stationary station for air control
| Measured Indicators |
signify |
Measuring units |
| carbon monoxide |
CO |
mg/m3 |
| ozone |
O3 |
µg/m3 |
| sulphur dioxide |
SO2 |
µg/m3 |
| nitrogen monoxide |
NO |
µg/m3 |
| nitrogen dioxide |
NO2 |
µg/m3 |
| PM<10 |
Прах |
µg/m3 |
| ammonia |
NH3 |
mg/m3 |
| hydrogen sulphide |
H2S |
mg/m3 |
| benzole |
C6H6 |
µg/m3 |
| Wind speed |
|
m/s |
| Wind direction |
|
- |
| atmospheric pressure |
|
mBar |
| solar radiation |
|
W/m2 |
| temperature |
t
|
0C |
| Relative humidity |
|
% |
The pollutants are measured according to methodologies approved by the minister of MOEW.
Description of measuring instruments
Manual sampling:
The sampling is performed by “Bravo”, “Strolein” instruments.
Spectrometer UV/VIS Lambda 2S PERKIN ELMER
MW digestion system MILESTONE
Atomic absorption spectrophotometer UNICAM 939
automaed stationary station for air control
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Analyser |
Measured Indicators |
Principle of measurement |
| 48
C |
carbon monoxide |
absorption of infra-rays with correlation |
| MLU 400 |
ozone |
absorption of UV rays |
| MLU |
sulphur dioxide |
Fluorescence |
| MLU 200A |
nitrogen monoxide
nitrogen dioxide |
Chemilumeniscence |
| FH62I-R |
dust |
absorption of ß rays |
| MLU 201A |
ammonia |
Chemilumeniscence |
| MLU 101A |
Сероводород |
Fluorescence |
| APHA 360 |
MNVOCs |
Flame ionization |
| GC 855 |
benzole |
Gas chromatography |
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