Indiscriminate disposal of waste from the livestock industry has been one of the main causes of pollution in streams in the New Territories, and still constitutes a health hazard in places.

• 禽畜业人士任意弃置废物，曾经是新界区河流污染的主要原因之一，某些河流的污染情况至今仍对市民的健康构成威胁。