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degree of sewage contamination; degree of sewage pollution | |||
waste water pollution; waste water pollution The impairment of the quality of some medium due to the introduction of spent or used water from a community or industry | |||
pollutant content in effluent wastes (residuaires) |
pollution des eaux usées : 6 phrases in 3 subjects |
Construction | 3 |
Environment | 2 |
Transport | 1 |