Division BAT 5 BAT is to monitor emissions to water from flue-gas treatment with at least the frequency given below and in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.
United Kingdom
| TOC monitoring and COD monitoring are alternatives. TOC monitoring is the preferred option because it does not rely on the use of very toxic compounds. | ||||
| Substance/Parameter | Standard(s) | Minimum monitoring frequency | Monitoring associated with | |
|---|---|---|---|---|
| Total organic carbon (TOC)f1 | EN 1484 | Once every month | BAT 15 | |
| Chemical oxygen demand (COD) | No EN standard available | |||
| Total suspended solids (TSS) | EN 872 | |||
| Fluoride (F–) | EN ISO 10304-1 | |||
| Sulphate (SO4 2–) | EN ISO 10304-1 | |||
| Sulphide, easily released (S2–) | No EN standard available | |||
| Sulphite (SO3 2–) | EN ISO 10304-3 | |||
| Metals and metalloids | As | Various EN standards available (e.g. EN ISO 11885 or EN ISO 17294-2) | ||
| Cd | ||||
| Cr | ||||
| Cu | ||||
| Ni | ||||
| Pb | ||||
| Zn | ||||
| Hg | Various EN standards available (e.g. EN ISO 12846 or EN ISO 17852) | |||
| Chloride (Cl–) | Various EN standards available (e.g. EN ISO 10304-1 or EN ISO 15682) | — | ||
| Total nitrogen | EN 12260 | — | ||
Annotations
Footnotes
- f1
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TOC monitoring and COD monitoring are alternatives. TOC monitoring is the preferred option because it does not rely on the use of very toxic compounds.