Water ingestion during water recreation

摘要: Quantitative risk assessments have estimated health risks of water recreation. One input to assessment models is the rate ingestion. published study rates ingestion during swimming, but estimates are not available for common limited contact recreation activities such as canoeing, fishing, kayaking, motor boating, and rowing. In summer 2009 two related studies were conducted estimate these activities. First, at Chicago area surface waters, survey research methods utilized characterize self-reported fishing among 2705 people. Second, outdoor swimming pools, analysis cyanuric acid, a tracer pool water, used 662 people who engaged in variety full-contact limited-contact recreational Data from was derive translation factors that quantify volume estimates. At less than 2% canoers kayakers reported swallowing teaspoon or more 0.5% mouthful more. Swimmers about 25-50 times likely report compared those participate on waters. Mean upper confidence waters 3-4 mL 10-15 mL, respectively. These may be useful modeling