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Table 5 Description of pollution indirectly discharged to water by industrial plants in Spain (2001), by specific pollutant.

From: Description of industrial pollution in Spain

POLLUTANTS TOTAL SPAIN AUTONOMOUS REGIONS WITH HIGHEST EMISSIONS
SUBSTANCES THRESHOLD (Mt/year)1 EMISSION (Mt/year)2 PLANTS3 MEAN EMISSION PER PLANT (Mt/year)4 REGION EMISSION (Mt/year)2 PLANTS3 MEAN EMISSION PER PLANT (Mt/year)4
GROUP 1: ENVIRONMENTAL THEMES
Nitrogen 50 6580 11 598 Andalusia 5673 3 1891
Phosphorus 5 1877 26 72 Andalusia 1584 7 226
GROUP 2: METALS AND COMPOUNDS
Arsenic 0.005 0.162 4 0.041 Galicia 0.130 1 0.130
Cadmium 0.005 0.370 15 0.025 Cantabria 0.150 1 0.150
Chromium 0.050 5 19 0.261 Basque Country 3 5 0.579
Copper 0.050 4 18 0.221 Basque Country 2 6 0.251
Mercury 0.001 0.078 5 0.016 Basque Country 0.047 2 0.023
Nickel 0.020 8 39 0.206 Aragon 3 2 2
Lead 0.020 2 15 0.141 Cantabria 0.882 1 0.882
Zinc 0.100 18 25 0.738 Basque Country 14 8 2
GROUP 3: CHLORINATED ORGANIC SUBSTANCES
Dichloroethane-1,2 0.010 0.023 1 0.023 Catalonia 0.023 1 0.023
Dichloromethane 0.010 0.212 1 0.212 Catalonia 0.212 1 0.212
Chloroalkanes 0.001 0.016 2 0.008 Catalonia 0.016 2 0.008
Halogenated organic compounds 1 87 7 12 Basque Country 72 3 24
GROUP 4: OTHER ORGANIC COMPOUNDS
Benzene, toluene, ethylbenzene, xylenes 0.200 10 3 3 Catalonia 9 2 5
Organotin-compounds 0.050 0.154 1 0.154 Andalusia 0.154 1 0.154
Polycyclic aromatic hydrocarbons 0.005 2 7 0.265 Catalonia 2 3 0.502
Phenols 0.020 4 21 0.184 Basque Country 2 3 0.505
Total organic carbon 50 53332 65 820 Andalusia 37557 11 3414
GROUP 5: OTHER COMPOUNDS
Chlorides 2000 366750 8 45844 Andalusia 312200 2 156100
Cyanides 0.050 4 4 1 Catalonia 4 2 2
Fluorides 2 30 4 7 Basque Country 26 3 9