Such actions as discharging waste water to rivers not only pollute the environment but also become a danger to people's health.

像排放污水这样的行为不仅污染了环境，还成为了人民健康的威胁。

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These years, Qomolangma is in danger because many people leave their waste behind, such as water bottles and plastic bags.

这些年来，珠穆朗玛峰处于危险之中，因为许多人把垃圾留在这里，如水瓶和塑料袋。

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The diver went into the deep water beyond the danger limit.

潜水员下潜到超过危险线的深水中去了。

《新英汉大辞典》

It is believed the decision relates to concerns that the site is not lined, which means there is a danger of polluted water seeping underground.

BBC: NEWS | UK | Wales | North West Wales | Waste tip faces licence problem

The report also includes a survey of more than 1, 000 parents which showed almost all (98%) believed every child should be able to swim by the end of primary school but only 40% thought their children would be able to swim to safety if they got into danger in the water.

BBC: Primary schools 'failing to honour swimming obligations'

"We're likely to see a dramatic increase now in drownings and other kinds of water fatalities and other kinds of danger associated with crossing in the water, " he said.

CNN: Mexico: Traffickers abandoning immigrants at sea