Division II.8 Chemical analysis
United Kingdom
Mandatory and optional parameters to be analysed on bulk deposition, throughfall, stemflow and fog samples are provided for in the following table:
| DOC = dissolved organic carbon, and N total = total nitrogen. | ||
| Sample type | Mandatory | Optional |
|---|---|---|
| Bulk deposition, throughfall, stemflow | Amount of precipitation | |
| pH and conductivity at 25 °C | ||
| Na, K, Mg, Ca, NH4 | Al, Mn, Fe, and other heavy metals, e.g. Cu, Zn, Hg, Pb, Cd, Co, Mo | |
| Cl, NO3 SO4 | P total, PO4 | |
| Total alkalinity Mandatory for individual samples if pH > 5 | ||
| DOC, Ntotal (N total is not mandatory for bulk deposition, but is highly recommended) | S total, HCO3 HCO3 can either be obtained by calculation (from pH, total alkalinity, temperature and ionic strength) or by direct measurement | |
| Fog, frozen fog (rime) | pH, conductivity | |
| Na, K, Mg, Ca, NH4 | ||
| Cl, NO3, SO4, P total | ||
| Alkalinity | ||
| Al, Mn, Fe, and other heavy metals, e.g. Cu, Zn, Hg, Pb, Cd, Co, Mo | ||