沈阳通报：对涉事企业立案调查

Group 1 - The ecological environment department of Shenyang City reported a significant foam presence in the Bai Zhi Drainage River, with anionic surfactants exceeding the standard by 0.38 times [1][4] - The foam was traced back to a washing product manufacturing company, where improperly stored raw materials for hand sanitizer entered the river, causing the foam formation [4] - Following the incident, the ecological environment department conducted extensive water quality monitoring, confirming that downstream water quality remained unaffected, with no detection of anionic surfactants [4]