听说渥太华河水有污染,是真的吗?

HarryZ

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听说渥太华河水有污染,是真的吗?
 
四五年前就听说过此事,老黄历了!渥太华河的鱼肯定不能吃。
 
有污染是肯定的,但多是在大雨之后,市内排水污染物较多造成的。每年夏天的时候都会因为大肠肝菌超标而关闭下游的海滩。

另外前几年上游核研究中心重水泄漏,也造成临时污染。

但是说污染严重,大概不准确(都是猜)。大概你们不清楚,渥太华的饮用水来源(自来水)就是从渥太华河市区这一段取水的。

所以说,如果不是特挑剔,吃这河里的鱼应该没太大问题吧 -不过本人对此没有研究。
 
[FONT=楷体]有道理[/FONT][FONT=楷体],这里没有什么工业,人也少,应该不会有大问题.估计商店里卖的也是从本地的[/FONT][FONT=楷体][/FONT]
 
一个渥太华大学的生物化学实验室教授,土生土长的法裔,一年四季都在渥太华河钓鱼来吃。这是直接知道的实情。他也住在渥太华河边上。所以我推想,鱼还是可以吃的。事实上,我也吃了两年了,味道不错。
 
是有污染,而且很严重。早期为了工业需要,ottawa 河边直接喷水银。其实老外不重视环境的时候比国人狠多了。越是大鱼体内毒素越多,吃点小的,少吃点应该好些。
 
是有污染,而且很严重。早期为了工业需要,ottawa 河边直接喷水银。其实老外不重视环境的时候比国人狠多了。越是大鱼体内毒素越多,吃点小的,少吃点应该好些。

早期为了工业需要,ottawa 河边直接喷水银?什么年代的事情?
 
早期为了工业需要,ottawa 河边直接喷水银?什么年代的事情?
同问. 吃了不少ottawa 河的鱼.
 
前几个月好像有报道,河里有放射性物质泄露,在CBC网站上
 
是有污染,而且很严重。早期为了工业需要,ottawa 河边直接喷水银。其实老外不重视环境的时候比国人狠多了。越是大鱼体内毒素越多,吃点小的,少吃点应该好些。

我们单位的洋老头也说,渥太华的鱼最好不要吃。尤其是sucker之类的。因为渥太华河曾遭极其严重的工业污染,河底仍然有太多重金属污染物。

即使现在,渥太华河沿岸也有很多研究机构和公司,有些是非常危险的,比如原子能,微生物,新能源等。还有以前埋在地下的一些重工业污染物和危险物,通过雨水渗透进入渥太华河。

最近的一次严重污染事件是2009年一月, NRU的核反应堆排放高放射性的重水(highly radioactive heavy water)进渥太华河。每天排放7,000升,连续排放了很长时间。

“Canadian reactors routinely release radioactive tritium into the atmosphere and nearby bodies of water. All radiation releases increase risks of birth defects, cancer and other diseases. Tritium - radioactive hydrogen - is particularly dangerous because it can move readily as water to any cell in the body and accumulate in DNA; and it has just the right decay energy to damage DNA without killing the cell.
 
[FONT=楷体]有道理[/FONT][FONT=楷体],这里没有什么工业,人也少,应该不会有大问题.估计商店里卖的也是从本地的[/FONT]

Don't take it for granted.

渥太华河上游有9个大纸浆厂。Ottawa river is impacted by several sources of pollution including municipal sewage and industrial wastewater. A combination of human waste, suspended solids, debris and a variety of chemicals derived from residential, industrial and agricultural sources pollute the river. The nine pulp mills on the banks of the OttawaRiver are significant sources of contamination.

渥太华河是北美最脏的河流之一。沿河的几个沙滩,因为细菌超标,每年平均只能开放游泳20天,最好的地段也不超过30天。比北美其它城市的河边沙滩要污染严重得多。
  • Municipal wastewater pollution: large amounts of sewage is disposed in the river. The combination of raw and treated sewage contains toxic substances such as human waste, suspended solids, debris and a variety of chemicals derived from residential, commercial and industrial sources. Furthermore, storm water running across the cities of Ottawa and Gatineau is discharged in the Ottawa River
  • Industrial pollution: nine pulp mills on the Ottawa River significantly pollute the water. A typical mill generates some 90 to 130 million litres of industrial sewage per day. Colour, taste and odour have been detected 900 km downstream of pulp mills.
  • No sustained research: water quality information for the Ottawa River is not integrated or consistent along the river. There is no one government agency that continually collects water quality information on a wide-scale basis for analysis. Water quality monitoring is piece-meal throughout the watershed and there are currently no monitoring programs designed to answer questions about water quality trends in the mainstream of the river over time. No one is adding up the cumuative inputs into the river.
  • No central oversight of efforts to protect the river: the Ottawa River falls between two provinces and a number of municipalities.
  • Dams: More than 50 major dams and several smaller water control structures can become barriers to species migration and negatively impact the river's biodiversity.
  • Agricultural waste pollution: discharging of fertilizers, manure, pesticides and herbicides into the river.
 
你回国吃饭不?如果吃,那渥太华河的鱼就可以吃。吃小鱼更安全一些。主要问题是汞含量问题。铅已经成问题,已经不可避免,所以不是问题了。
 
得看到底污染到什么程度。

如果想吃钓上来的鱼,远离污染水域为上策。
 
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