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19. Yn lle Tabl B yn Rhan II o Atodlen 3 a'r nodiadau sy'n gysylltiedig ag ef rhoddir y darpariaethau canlynol —
Column 1 | Column 2 | Column 3 | Column 4 |
---|---|---|---|
Item | Parameters | Units of Measurement | Maximum Concentration |
1. | Arsenic | μg As/l | 10 |
2. | Cadmium | μg Cd/l | 5 |
3. | Cyanide | μg CN/l | 50 |
4. | Chromium | μg Cr/l | 50 |
5. | Mercury | μg Hg/l | 1 |
6. | Nickel | μg Ni/l | 20 |
7. | Selenium | μg Se/l | 10 |
8. | Antimony | μg Sb/l | 5 |
9. | Lead | μg Pb/l | 10 |
10. | Pesticides and related products: | ||
(a)individual substances | μg/l | 0.10 (notes 1 and 2) | |
(b)total substances | μg/l | 0.50 (notes 1 and 3) | |
11. | Polycyclic aromatic hydrocarbons | μg/l | 0.1 sum of concentrations of specified compounds (note 4) |
12. | Bromate | μg BrO3/l | 10 |
Note 1: “Pesticides” means:
organic insecticides,
organic herbicides,
organic fungicides,
organic nematocides,
organic acaricides,
organic algicides,
organic rodenticides,
organic slimicides,
related products (inter alia, growth regulators) and their relevant metabolites, degradation and reaction products.
Only those pesticides which are likely to be present in a given water need to be monitored.
Note 2: The maximum concentration applies to each individual pesticide. In the case of aldrin, dieldrin, heptaclor and heptachlor epoxide the maximum concentration is 0.030 μg/l.
Note 3: The maximum concentration for “total substances” refers to the sum of the concentrations of all individual pesticides detected and quantified in the monitoring procedure.
Note 4: The specified compounds are benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(ghi)perylene, indeno(1,2,3-cd) pyrene.”.