夏季到来 ,游泳是一项健身消暑的运动。但是 ,不符合卫生要求的水质 ,会给游泳者的健康带来一定的危害。有些人游泳后得了皮肤病或者红眼病等病症就是证明。那么 ,选择什么样的水质游泳呢 ?首先 ,在河里游泳 ,要避开城市下水道和工厂排放废水的地段。因为工厂废水里含有许多有 Summer is coming, swimming is a fitness exercise. However, the quality of the water that does not meet the hygiene requirements will bring some harm to the swimmer’s health. Some people get dermatological or pink eye disease after swimming is proof. So, what kind of water quality do you choose to swim in? First of all, swim in the river, to avoid the city sewers and factories discharge waste water lots. Because there are many factories have wastewater