Portal de Periódicos da CAPES

Response of lake sediments to changes in trace metal emission from the smelters at Sudbury, Ontario

1987; Elsevier BV; Volume: 44; Issue: 3 Linguagem: Inglês

10.1016/0269-7491(87)90004-2

1873-6424

Jerome O. Nriagu, Salem S. Rao,

Coal and Its By-products

Historical records preserved in sediments show that the lakes are extremely sensitive to metal emissions from the smelters in the Sudbury basin. From the observed quick response, a strong capacity for rapid recovery (deacidification) of acid-stressed lakes in the area is deduced. The study thus emphasises the need for curtailing the emissions of acidic and acidifying substances as a critical step in reducing lake acidification as well as in rehabilitating many of the afflicted lakes.