CHANNELVIEW, Texas — Public health officials are investigating a case of dangerous liquid mercury that appears to have washed or blown ashore here, east of Houston, in the aftermath of Hurricane Harvey.

Bobby Griffin found the clusters of shiny silver mercury globules scattered across his San Jacinto riverfront property on Tuesday, a few hundred yards from the San Jacinto Waste Pits, a Superfund site that was inundated during last week’s storm.

Harvey cut a path through industrial corridors, raising concerns about pollution and runoff. Public health officials are especially concerned about flooding at highly contaminated Superfund sites, designated by the federal government for clean up.

Lisa Montemayor, an environmental investigator for Houston’s health department, said that officials would be dispatched to Mr. Griffin’s property as soon as possible, but she could not yet say where the mercury had come from, or how widespread the contamination was.