文章论述了松花江冰封期有机污染加重的原因和污染防治措施及重要意义。
This article express the reason of organic poison pollution become serious, the measures of the pollution treatment and the major meaning of Songhua river in the period of the ice sealed.
春汛期间水质较差介于II类和III类之间，平水期和冰封期稳定于II类水质。
Spring flood period of poor water quality, water quality levels ranged between class II and III , other times, water quality stability in the level II .
春汛期间水质较差介于II类和III类之间，平水期和冰封期稳定于II类水质。
Spring flood period of poor water quality, water quality levels ranged between class II and III , other times, water quality stability in the level II .
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