Table 1 Evaluation criteria for sampling sites
From: Pesticides and pesticide-related products in ambient air in Germany
Factor | Code in | Number of cases passive air sampler | |
|---|---|---|---|
Regression tree | |||
Landscape classification | Alpenvorland (AVL) | a | 5 |
in regression tree: | Nordostdeutsches Tiefland (NOTL) | b | 13 |
"Naturraum " | Nordwestdeutsches Tiefland (NWTL) | c | 11 |
Östliches Mittelgebirge (OMG) | d | 4 | |
Südwestdeutsches Mittelgebirge / Stufenland (SWMGS) | e | 8 | |
Westliches Mittelgebirge (WMG) | f | 8 | |
Biogeographical region | Atlantical | a | 11 |
"BioGeo " | Continental | b | 38 |
Risk of wind erosion | 0.0–1.0 | a | 28 |
"Erosion3 " | 1.5–2.0 | b | 7 |
2.5–3.0 | c | 12 | |
3.5–5.0 | d | 2 | |
Protected area | No | a | |
"SchutzGebJN " | Yes | b | |
Agricultural intensity | Low (Ratio 0–20%) | a | 10 |
"LwIntK " | Medium (Ratio 20–50%) | b | 13 |
Percentage of arable farming in a 4 km2 area around the sampling site | High (Ratio > 50%) | c | 26 |
Distance to the nearest possible source | Close range: a few m to 100 m | a | 16 |
"DistanzE " | Middle range: 100–1000 m | b | 21 |
Far distance: over 1000 m | c | 12 | |
Organic production | No | a | 39 |
"BioJN " | Yes (including 2 National Parks) | b | 10 |