Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, Slovenia.
Environ Geochem Health. 2012 Aug;34(4):513-26. doi: 10.1007/s10653-011-9439-6. Epub 2011 Dec 6.
Heavy metal contamination of soils is widespread and induces a long-term risk to ecosystem health. This research focuses on the heavy metal contamination, transfer values and risk assessment in the Kočani Field plant system (Republic of Macedonia). To identify the heavy metal concentrations in Kočani crops (rice and maize), the geochemical analysis was performed by inductive coupled plasma mass spectrometer and thereupon the transfer factor (TF) and estimated daily intake amount values were calculated. The highest As, Cd, Mo, Pb and Zn values were determined in the rice samples grown in the paddy fields near the Zletovska River. The highest Pb and Mo concentrations measured in the maize samples were from the maize fields near the Zletovska River and Ciflik city. High TF values for Mo, Zn, Cd and Cu revealed a strong accumulation of Mo, Zn and Cd by rice and Mo and Zn by maize crops. The results of the estimated daily intake showed that the regular consumption of rice and maize crops containing the highest Cd, Mo, Pb and Zn concentrations could pose a serious threat to human health, because the daily intake of Cd, Mo, Pb and Zn for crops grown in the fields around the Zletovska River exceeded the recommended provisional tolerable daily intake values. Taking into account the results, the area around Zletovska River is considered as the most anthropogenically impacted part of Kočani Field.
土壤中的重金属污染广泛存在，并对生态系统健康构成长期风险。本研究重点关注科恰尼油田（马其顿共和国）植物系统中的重金属污染、迁移值和风险评估。为了确定科恰尼作物（水稻和玉米）中的重金属浓度，采用电感耦合等离子体质谱法进行了地球化学分析，随后计算了迁移因子（TF）和估计的日摄入量值。在靠近兹莱托夫斯卡河的稻田中种植的水稻样本中，检测到最高的砷、镉、钼、铅和锌值。在靠近兹莱托夫斯卡河和奇夫利克市的玉米田样本中，检测到最高的铅和钼浓度。钼、锌、镉和铜的高 TF 值表明，水稻和玉米作物对钼、锌和镉具有很强的积累能力。估计的日摄入量结果表明，经常食用含有最高镉、钼、铅和锌浓度的水稻和玉米作物可能对人类健康构成严重威胁，因为在兹莱托夫斯卡河附近农田中种植的作物的镉、钼、铅和锌日摄入量超过了建议的暂定可耐受日摄入量值。考虑到这些结果，兹莱托夫斯卡河周围地区被认为是科恰尼油田受人为影响最大的部分。
