官员警告缅因州威拉德海滩的粪便细菌含量很高，敦促游泳者在潜水前进行检查。 Officials warn of high fecal bacteria levels at Maine's Willard Beach, urging swimmers to check before diving.

官员敦促游泳者在缅因州海滩潜水前检查水中的细菌含量，尤其是南波特兰的威拉德海滩，去年夏天该海滩因粪便细菌含量高而发出了 15 条警告。 Officials urge swimmers to check water bacteria levels before diving in at Maine beaches, especially at South Portland's Willard Beach, which had 15 advisories last summer due to high fecal bacteria levels. 降雨、肥料径流和狗粪会增加这些水平。 Rainfall, fertilizer runoff, and dog waste can increase these levels. 救生员每周对水中的细菌进行两次检测，如果细菌含量超过游泳阈值，他们会重新检测以确保安全。 Lifeguards test water for bacteria twice a week, and if levels exceed the swimming threshold, they retest to ensure safety.