Marshes, streams and lakes lie alongside many of the roads and highways that zigzag across North America. Plants and animals inhabit these water bodies and can be exposed to many of the substances we put on those roads, including road salt.
원문출처 : http://www.cnn.com/2018/01/08/us/road-salt-environment-partner/index.html
원문출처 : http://www.cnn.com/2018/01/08/us/road-salt-environment-partner/index.html