Irrigation Water Contamination and Crop Uptake (Perchlorate, Nitrate, Heavy Metals) — outdoor safety profile
Low riskIrrigation water quality directly affects food safety through crop uptake.
What is this product?
Irrigation water quality directly affects food safety through crop uptake. Perchlorate: found in Colorado River water (used to irrigate 80% of US winter leafy greens) from rocket fuel manufacturing and natural deposits — inhibits thyroid iodine uptake. Nitrate: from fertilizer runoff — converted to nitrite in body (methemoglobinemia in infants, nitrosamine precursor). Heavy metals: cadmium, lead, arsenic from industrial discharge, mining, and natural geology accumulate in soil and crops over decades. Leafy greens, rice, and root vegetables are highest accumulators. FSMA Produce Safety Rule: requires agricultural water quality testing for generic E. coli but not chemical contaminants.
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Soil Contaminant
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