Sampling: Whatman No 1 filter paper, flow rate 1.5 L/min, 24 hour sampling
          period,  absorption media 1% H2O2.

Analysis: Standard British method, correction for NH3 content at Djordjiceva and
          B. Filipovica measuring sites, sulphate method at mesuring site Susedgrad.

Black smoke
Sampling: Whatman No 1 filter paper, flow rate 1.5 L/min, 24 hour sampling
          period.

Analysis: EEL reflectometer

Nitrogen dioxide
Sampling: Passive samplers (IMI), Whatman No 1 filter paper, adsorption media
          triethanolamine and acetone (1:1)

Analysis: Colorimetric method (Griess-Illosway)

Ammonia:
Sampling: Whatman No 1 filter paper, flow rate 1.5 L/min, 24 hour sampling period,
          absorption media 1% H2O2.

Analysis: Nessler³s method

Total suspended particulates
Sampling: Membrane filter paper (102 mm diameter, pore size 0.3 um),
          flow rate 250 m3/day.

Analysis: Gravimetric method

Metal content   Pb,    Fe,    Mn,    Cu,    Cd,   Zn,  in total suspended particulates
Sampling: Membrane filter paper (102 mm diameter, pore size 0.3 um),
          flow rate 250 m3/day.

Analysis: AAS method (exstraction by HNO3, EDTA treatment)