Sitio Experimental la Campana, CIRNOC, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Km. 33.3 Carretera Chihuahua-Ojinaga. Aldama, Chihuahua C.P. 32910, Mexico.
Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Campus Universitario #2, Circuito Universitario, Chihuahua, Chihuahua C.P. 31125, Mexico.
Int J Environ Res Public Health. 2017 Apr 25;14(5):456. doi: 10.3390/ijerph14050456.
The availability of good quality water resources is essential to ensure healthy crops and livestock. The objective of this study was to evaluate the level of pollution in Bustillos Lagoon in northern Mexico. Physical-chemical parameters like sodium, chloride, sulfate, electrical conductivity, nitrates, and the pesticide dichlorodiphenyltrichloroethane (DDT) were analyzed to determine the water quality available in the lagoon. Although DDT has been banned in several countries, it is still used for agricultural purposes in Mexico and its presence in this area had not been analyzed previously. Bustillos Lagoon was divided into three zones for the evaluation: (1) industrial; (2) communal lands; and (3) agricultural. The highest concentrations of sodium (2360 mg/L) and SAR (41 meq/L) reported in the industrial zone are values exceeding the United Nations Food and Agricultural Organization (FAO) irrigation water quality guidelines. DDT and its metabolites were detected in all of the 21 sites analyzed, in the agricultural zone ∑DDTs = 2804 ng/mL, this level is much higher than those reported for other water bodies in Mexico and around the world where DDT has been used heavily. The water in the communal zone is the least contaminated, but can only be recommended for irrigation of plants with high stress tolerance and not for crops.
优质水资源的供应对于确保健康的作物和牲畜至关重要。本研究旨在评估墨西哥北部布斯蒂略斯泻湖的污染程度。分析了物理化学参数，如钠、氯、硫酸盐、电导率、硝酸盐和农药滴滴涕（DDT），以确定泻湖中的可用水质。尽管滴滴涕已在多个国家被禁止使用，但它仍在墨西哥用于农业用途，此前尚未对该地区的滴滴涕进行分析。布斯蒂略斯泻湖分为三个区域进行评估：（1）工业区；（2）公共土地区；（3）农业区。工业区报告的最高钠浓度（2360 毫克/升）和 SAR（41 毫当量/升）值超过了联合国粮食及农业组织（FAO）灌溉水质指南。在分析的 21 个地点都检测到了滴滴涕及其代谢物，在农业区∑DDTs=2804ng/mL，这一水平远高于墨西哥和世界其他广泛使用滴滴涕的水体报告的水平。公共区的水受污染最小，但只能推荐用于具有高耐受力的植物灌溉，而不适用于作物。
