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Flashcards in mercury poisoning Deck (9)
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1

Background
where did the mercury originate?

1962, Dryden Chemical Company operated a chloralkali (produce chlorine and sodium hydroxide used to bleach paper) process plant using mercury cells

2

Background
how did the mercury get into the water system?

in March, Dryden began dumping 10 metric tonnes of mercury into Wabigoon River

3

Background
how were the water and fish affected?

the water and fish in the river was contaminated

4

Background
what was the effect of the mercury poisoning?

long term health, environmental, social and economic effects

5

Details on event
why wasn't the mercury cleared up?

because dredging could clear it up, but risk more entering system

6

Details on event
how was some mercury cleared up?

dilute mercury with clay sediment, decreases mercury level

7

Details on event
why was no political assistance offered?

no clear consensus from government
water believed to be safe
no leading remediation methods without risk
situation is lesser priority

8

Outcome
when was the issue identified and what was the result?

1969; the next year, the company was ordered to stop releasing mercury into the water system- but the damage was done

9

Outcome
how did the fish poisoning impact the First Nations peoples?

fish was the main food source for the First Nations peoples and the fishing tourism industry

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