The waste water that leaks out is water that already now goes into that coastal environment, and the algae that leak out are biodegradable, and because they're living in waste water, they're fresh water algae, which means they can't live in salt water, so they die.
流出来的废水是 原本就应被排放到海里的， 而那些藻类是会自然分解的， 因为他们本来就生活在废水中， 他们是淡水藻类，也就是说，他们无法 生活在咸水中，他们就会死去。