Self pollution rate of organic matter in cultural shrimp pond was quantitatively determined by organic matter flux in cultural waters.

利用养殖期间水体中颗粒有机质垂直迁移通量，测定了虾塘自污速率；

youdao

Conception of bioremediation, aquaculture self-pollution and main bioremediation technologies are reviewed in the paper.

介绍了生物修复的概念、水产养殖存在的自身污染问题及其主要生物修复技术。

youdao

Major problems may, as we are assured, be very unlikely, but if something does go badly wrong with GM crops we will be faced with a form of pollution that is self-perpetuating.

BBC: Prince Charles speaks out against GM food

Toto, the Japanese toilet company, already sells the ubiquitous self-warming toilet which creates pleasing sounds for camouflaging, um, "noise pollution".

ENGADGET: The Japanese Home of the Future