sources of heavy metals 中文意思是什麼
sources of heavy metals
解釋
重金屬的來源-
These toxic substance include pesticides, heavy metals and its compound materials, organic and inorganic matters, micro - organisms, oily materials, plant nutrients, various discarded garbage and radioactive substances, etc. the sources of the water pollution mainly come from unprocessed factory, domestic and hospital sewages
這些有害物質包括農藥重金屬及其化合物等有毒物質，有機和無機化學物質，致病微生物油類物質植物營養物，各種廢棄物和放射性物質等。水污染的來源主要是未加處理的工業廢水生活廢水和醫院污水。 -
( 2 ) along the intertidal zone, the lower of contents of heavy metal exponentially, the farther is from sewage sources. ( 3 ) the concentrations of heavy metal decrease inch by inch from high tidal flat to the middle and low intertidal zone. it is water dynamics that impact on the accumulation features of heavy metals of intertidal
如河套是這五個區域中唯一的非河口區，潮間帶沉積物重金屬含量全灣最低；大沽河1東營鹽場段緊鄰大沽河河口，大沽河2營海段遠離河口，後者重金屬含量普遍低於前者。 -
Soil samples from chongqing and surrounding areas indicate the existence of varying concentrations of heavy metals which may potentially become sources of pollution
"土壤中存在不同程度的重金屬"並不能斷言為"污染" .某些水溶性重金屬有流失入水源的可能性才能被考慮成有潛在性的污染源。原文不夠嚴密，有危言聳聽之慮。
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