However, with so - called «point source pollution», such as discharge pipes, matters are much clearer. (newscientist.com)
Before you give up on vacuuming, however, two solutions can address this problem: either install a central vacuum system with the canister - air discharge piped outside the house, or purchase a high - quality, portable vacuum cleaner with a HEPA filtration system. (rismedia.com)
Efforts on the largest piece of that project — a $ 45 million sewage treatment facility at a massive discharge pipe called «Big C» just north of the Port of Albany, which is the major source of Albany's spills — will be ramped up in 2018. (timesunion.com)