El-Kabbany S, Rashed M M, Zayed M A
Pesticides Department, Faculty of Agriculture, Cairo University, Cairo, Egypt.
J Hazard Mater. 2000 Feb 1;72(1):11-21. doi: 10.1016/s0304-3894(99)00174-0.
Monitoring of pesticide residues were conducted at different locations in the El-Haram region Giza, Egypt. The water samples were collected from El-Haram Giza, canal water supplies (El-Zomor, Abd-el-aal land and seaside and El-Mansorya), in addition to El-Moheet drainage water. The soil samples were collected from the arable land that surrounds water canals. Water samples were obtained by solid phase extraction (SPE) and soil samples by gel permeation chromatography (GPC). The combination of gas chromatography and mass spectroscopy with different ionization techniques was used for determination and identification of the pesticides, which were quantitatively determined as 1 microgram 1(-1) levels in environmental samples. The residues of pesticides were varied between different locations. Also, organochlorine pesticide residues in El-Moheet drainage water were relatively higher than in the canal water. The concentrations of organophosphorous compounds (chlorpyrifos, dimethoate and parathion) seem to be low in water as compared to soil samples. Most findings were less than 1 microgram g(-1), which is considered a low-level finding. Sixteen organochlorine pesticides were detected in most of the water samples and the percent of positive samples followed the order drins > total BHC > total DDT > endosulfan > heptachlor epoxid > heptachlor. Pentachlorophenol (PCP) was detected only in El-Zomor and Abd-el-aal canal water. Results obtained confirm the presence of different pesticide residues representing different chemical classes in the canal waters. This means that the discharging of wastes in to the water supplies must be controlled. Drainage water was highly polluted and contains much more pesticide residues than different canal waters.
在埃及吉萨省哈拉姆地区的不同地点开展了农药残留监测。水样采集自吉萨省哈拉姆地区、运河供水处（宰穆尔、阿卜杜勒 - 阿阿勒陆地及海边以及曼苏里耶），此外还采集了穆heet排水渠的水样。土壤样本采集自环绕水渠的耕地。水样通过固相萃取（SPE）获取，土壤样本通过凝胶渗透色谱法（GPC）获取。采用气相色谱与质谱联用以及不同的电离技术来测定和识别农药，这些农药在环境样本中的定量测定水平为1微克/升。不同地点的农药残留情况各异。此外，穆heet排水渠水中的有机氯农药残留相对高于运河水。与土壤样本相比，水中有机磷化合物（毒死蜱、乐果和对硫磷）的浓度似乎较低。大多数检测结果低于1微克/克，这被视为低水平检测结果。在大多数水样中检测到了16种有机氯农药，阳性样本百分比顺序为：狄氏剂＞总六六六＞总滴滴涕＞硫丹＞环氧七氯＞七氯。仅在宰穆尔和阿卜杜勒 - 阿阿勒运河水中检测到了五氯苯酚（PCP）。所得结果证实了运河水中存在代表不同化学类别的不同农药残留。这意味着必须控制向供水系统排放废物。排水渠水受到高度污染，所含农药残留比不同运河水多得多。
