A survey of Nitrate and Nitrite Contents in Vegetables to Assess The Potential Health Risks in Kurdistan, Iraq

Abstract In this study, nitrate and nitrite contents were determined of a total (308) samples 15 different types vegetable such as leek, swiss chard, celery, spinach, garden cress, green onion, turnip, radish, aubergine, squash, tomato, pepper, cucumber, mint, tarragon. They taken from fields located in Sulaymaniyah province: city (Tanjarro Kanaswra), Bazyan (Baynjan), Halabja (Said Sadiq), Kalar (Grda Gozena). Using spectrophotometer measurements performed by UV/VIS double beam at 538nm. The highest level (529.55 mg/kg) for cress Said Sadiq, (486.74 Swiss chard Kanaswra, (477.65 spinach Bazyan. addition, leek celery contained high concentrations about (416.65 447.60) mg/kg Kanaswra Bazyan, respectively. While the lowest concentration fruiting vegetables like tomato was 5.934 aubergine Grda Gozena 5.617 mg/kg. Interestingly, value Acceptable Daily Intake (ADI) Target Hazard Quotient (THQ) lower than standard limit, ADI study (0.51, 2.18) bw/day adults children, while limit (3.70 bw/day). Also, (0.01, 0.05) mg/kg/bw 0 - 0.06 mg kg, result, THQ ≤1. summary, we can conclude that amount nitrates raw limit’s does not cause health problems consumers.