In the last issue of Update, we began to talk about nonpoint sources of pollution and how they impact the Sound. In that issue, we focused on nonpoint pollution as it relates to low dissolved oxygen, noting that nonpoint sources contribute over 20% of the total nitrogen load, making it a significant contributor to the hypoxia problems that plague the Sound each summer.
However, the impacts of nonpoint source pollution go beyond nitrogen and low dissolved oxygen. Some of the other problems that polluted runoff cause in the Sound include:
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