On behalf of the Hong Kong government, a consulting company conducted a study of toxic chemicals pollution in Hong Kong (CH2M - IDC 2003). The major aim of the study was to identify and characterize toxic chemicals of potential concern to Hong Kong and their ecological and incremental human health risk assessments. Among the preliminary Priority Toxic Substance List of 135 chemicals, two organic compounds (DDD and DDE) and one metalloid (inorganic arsenic) were identified as chemicals of potential concern, based on the human health risk assessment. However, most of the Stockholm Convention POPs and emerging chemicals of concern have not been covered in the study.
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