高氮施肥區(qū)蔬菜硝酸鹽及亞硝酸鹽調(diào)查
發(fā)布時間:2018-07-13 13:25
【摘要】:目的了解高氮施肥區(qū)蔬菜硝酸鹽及亞硝酸鹽污染情況。方法于2011年7—10月選擇沙潁河上游地區(qū)每月采樣,共采集27種、136個蔬菜樣品檢測硝酸鹽、亞硝酸鹽含量并進行初步的健康風險評估。結(jié)果 8—9月蔬菜硝酸鹽含量較高,10月最低;9月蔬菜亞硝酸鹽含量最高,7—8月較低,10月最低;7—10月份6類蔬菜亞硝酸鹽含量超標(4.00mg/kg)率為41.67%,10月均達標。蔬菜硝酸鹽健康風險指數(shù)除10月外均1;亞硝酸鹽健康風險指數(shù)均1。結(jié)論該區(qū)域蔬菜硝酸鹽和亞硝酸鹽蓄積水平較高,且硝酸鹽存在一定的健康風險。
[Abstract]:Objective to investigate nitrate and nitrite pollution in vegetables in high nitrogen fertilization area. Methods A total of 27 vegetable samples were collected in the upper reaches of Shaying River from July to October 2011. Nitrate and nitrite contents were detected in 136 vegetable samples and a preliminary health risk assessment was carried out. Results the nitrate content of vegetables was higher in August and September, the lowest in October, the highest in September and the lowest in July and October. The 4.00mg/kg rate of six kinds of vegetables in October was 41.67 and reached the standard in October. The nitrate health risk index of vegetables was 1 except October, and the nitrite health risk index was 1. Conclusion the accumulation of nitrate and nitrite in vegetables in this area is high, and nitrate has some health risks.
【作者單位】: 濮陽縣環(huán)境保護局;河南大學環(huán)境與規(guī)劃學院;
【基金】:國家自然科學基金(41371195;41301336) 教育部和河南省共建河南大學項目(SBGJ0907010)
【分類號】:R155.5
本文編號:2119523
[Abstract]:Objective to investigate nitrate and nitrite pollution in vegetables in high nitrogen fertilization area. Methods A total of 27 vegetable samples were collected in the upper reaches of Shaying River from July to October 2011. Nitrate and nitrite contents were detected in 136 vegetable samples and a preliminary health risk assessment was carried out. Results the nitrate content of vegetables was higher in August and September, the lowest in October, the highest in September and the lowest in July and October. The 4.00mg/kg rate of six kinds of vegetables in October was 41.67 and reached the standard in October. The nitrate health risk index of vegetables was 1 except October, and the nitrite health risk index was 1. Conclusion the accumulation of nitrate and nitrite in vegetables in this area is high, and nitrate has some health risks.
【作者單位】: 濮陽縣環(huán)境保護局;河南大學環(huán)境與規(guī)劃學院;
【基金】:國家自然科學基金(41371195;41301336) 教育部和河南省共建河南大學項目(SBGJ0907010)
【分類號】:R155.5
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