| Chinese | English |
| 持久性 | persistence The capacity of a substance to remain chemically stable. This is an important factor in estimating the environmental effects of substances discharged into the environment. Certain toxic substances (e.g., cyanides) have a low persistence, whereas other less immediately toxic substances (e.g., many organochlorines) have a high persistence and may therefore produce more serious effects (物质的一种能力，保持化学稳定性。这种物质是影响环境评估的一个重要因素。某些有毒物质(如氰化物)有较弱的持久性，而其它不是立即有毒的物质(如很多有机氯)有很强的持久性，并可能因此产生更严重的影响。) |
| 持久性有机污染物 | persistent organic pollutant (在环境中不能降解且保持原状的有机污染物。更强的持久性污染物也许会导致更有害的环境效果。 (Organic pollutants that do not break down chemically and remain in the environment. Pollutants with higher persistence may produce more harmful environmental effects)) |
| 持久的有机污染物质简写为POP | persistent organic pollutant |
| 有机污染物的持久性 | persistence of pesticides The ability of a chemical to retain its molecular integrity and hence its physical, chemical, and functional characteristics in the environment through which such a chemical may be transported and distributed for a considerable period of time (具备这种能力的化学物质，能保持其分子完整性的物理、化学和功能特点。在环境中，这样的化学物质可能被保持一段时间。) |
