The pollution in this river is so serious that the water has turned black. 这条河的污染非常严重，水都变黑了。

Air pollution is a major problem in many big cities around the world. 空气污染是世界上许多大城市的主要问题。

Noise pollution can have a negative impact on people's health and well-being. 噪音污染会对人们的健康和幸福产生负面影响。

Light pollution makes it difficult to see the stars clearly at night. 光污染使得晚上很难清楚地看到星星。

Soil pollution can reduce the fertility of the land and affect agricultural production. 土壤污染会降低土地肥力，影响农业生产。

We should take action to reduce plastic pollution in the ocean. 我们应该采取行动减少海洋中的塑料污染。

Industrial pollution has damaged the ecological balance of this area. 工业污染破坏了这个地区的生态平衡。

The government is implementing strict measures to control pollution. 政府正在实施严格的措施来控制污染。

Pollution from factories is one of the main causes of environmental degradation. 工厂排放的污染物是环境恶化的主要原因之一。

Water pollution has led to the death of many fish and other aquatic organisms. 水污染导致许多鱼类和其他水生生物死亡。

Everyone should be aware of the harm of pollution and do their part to protect the environment. 每个人都应该意识到污染的危害，并尽自己的一份力量保护环境。

The city is suffering from severe air pollution due to heavy traffic. 由于交通拥堵，这座城市正遭受严重的空气污染。

Pollution prevention is crucial for the sustainable development of our planet. 预防污染对我们地球的可持续发展至关重要。

Chemical pollution in the soil can pose a threat to human health through the food chain. 土壤中的化学污染会通过食物链对人类健康构成威胁。

The increase in pollution levels is a wake-up call for us to change our lifestyle. 污染水平的上升给我们敲响了警钟，促使我们改变生活方式。

Marine pollution is endangering the survival of many marine species. 海洋污染正危及许多海洋物种的生存。

We need to invest more in clean technologies to combat pollution. 我们需要在清洁技术上投入更多资金来对抗污染。

The effects of pollution on wildlife are becoming increasingly evident. 污染对野生动物的影响越来越明显。

Reducing pollution requires the joint efforts of the whole society. 减少污染需要全社会的共同努力。

The new policy aims to cut down on industrial pollution significantly. 新政策旨在大幅减少工业污染。