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Joe Cessna’s neighbors include chemical plants that are as much a part of the Niagara Falls landscape as the Cataracts.

He’s constantly reminded of their presence. There’s the “nasty smell” that permeates his neighborhood and the greasy film that coats his pool in the summer and car year-round.

“I can wash my car and within a couple of hours there’s a film on it,” he said.

“Everybody says it’s safe, but you’ve got to wonder.”