- 污染物 wūrǎnwù pollutantpollutant; contaminant
- 环境污染 huánjìngwūrǎn environmental pollutionDamage to the natural environment caused by the production or discharge of harmful substances during human activity
- 水污染 shuǐwūrǎn water pollutionpollution of bodies of water, such as rivers, lakes, and oceans, by industrial waste, sewage, or chemicals
- 污染源 wūrǎnyuán pollution sourcesource of pollution; the point of origin for harmful substances in the environment
- 污染区 wūrǎnqū contaminated areaan area that has been polluted or affected by harmful substances; contaminated zone
- 热污染 rèwūrǎn thermal pollutionpollution caused by the release of excess heat from human activity or natural sources into the environment, which can lead to abnormal climate patterns
- 放射性污染 fàngshèxìngwūrǎn radioactive contaminationradioactive pollution or contamination caused by the release of radioactive materials into the environment, typically through industrial activity or nuclear explosions
- 核污染 héwūrǎn nuclear pollutionNuclear or radioactive contamination of the environment, people, or animals caused by nuclear weapon tests, radiation leaks from power plants, or nuclear waste.
- 次生污染 cìshēngwūrǎn secondary pollutionPollution caused by new harmful substances that are created when pollutants released from a source undergo chemical or biological changes in the environment; also called [[二次污染|二次汙染|er4 ci4 wu1 ran3]]
- 水体污染 shuǐtǐwūrǎn water pollutionthe contamination of water bodies such as lakes, rivers, oceans, and groundwater by chemical, physical, or biological substances
- 水质污染 shuǐzhìwūrǎn water pollutionThe contamination of water bodies, specifically referring to the degradation of water quality
- 海洋污染 hǎiyángwūrǎn marine pollutionmarine pollution; pollution of the ocean
- 白色污染 báisèwūrǎn white pollutionEnvironmental pollution caused by discarded plastic waste; named as such because most plastic products are white. Also called [[白色公害|白色公害|bai2 se4 gong1 hai4]].
- 空气污染 kōngqìwūrǎn air pollutionpollution of the atmosphere by harmful substances
- 二次污染 èrcìwūrǎn secondary pollutionpollution caused by primary pollutants undergoing physical, chemical, or biological changes to form new harmful substances; also known as [[次生污染|次生汙染|ci4 sheng1 wu1 ran3]] or [[二次公害|二次公害|er4 ci4 gong1 hai4]]
- 精神污染 jīngshénwūrǎn spiritual pollutionSpiritual or ideological contamination; refers to the harmful influence of decadent or reactionary thoughts, speech, and cultural works on people's minds.
- 光害污染 guānghàiwūrǎn light pollutionenvironmental contamination caused by excessive or misdirected artificial light
- 光污染 guāngwūrǎn light pollutionenvironmental pollution consisting of excessive, misdirected, or obtrusive artificial light
- 噪声污染 zàoshēngwūrǎn noise pollutionharmful or annoying levels of noise in the environment that can cause health issues or disruption to daily life; previously known as [[噪音污染|噪音污染|zao4 yin1 wu1 ran3]]
- 噪音污染 zàoyīnwūrǎn noise pollutionnoise pollution; sound pollution
- 土壤污染 tǔrǎngwūrǎn soil pollutionEnvironmental degradation where soil quality deteriorates due to the presence of waste, fertilizers, heavy metals, or wastewater; often results in the loss of land's agricultural productivity and fertility
- 大气污染 dàqìwūrǎn air pollutionair pollution; atmospheric pollution caused by human activity or natural events like volcanic eruptions