Mateo R, Martínez-Vilalta A, Guitart R
Laboratory of Toxicology, School of Veterinary, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
Environ Pollut. 1997;96(3):335-41. doi: 10.1016/s0269-7491(97)00046-8.
Lead (Pb) poisoning has been found to be a serious problem for waterfowl in some southern European countries, but few studies have been conducted in Spain. In order to obtain these data, studies were made in the Ebro delta, a Spanish Ramsar site, during 1992 and 1993. Lead shot densities in the first 20 cm of sediment ranged from < 8 900 to 2 661 000 shot ha(-1). A similar proportion of birds had lead shot in the gizzard and elevated liver lead (> 5 microg g(-1) DW) concentrations. Northern pintail and common pochard (both with declining populations in Europe) showed the highest levels of shot ingestion, with 70.8 and 69.2%, respectively. Body condition index in the northern pintail was negatively correlated with the number of pellets in the gizzard and liver Pb concentration. Levels of exposure were higher than in other northern countries of the western Palearctic flyway, where lead shot have been banned recently.
铅（Pb）中毒已被发现是欧洲一些南部国家水禽面临的严重问题，但在西班牙开展的相关研究较少。为获取这些数据，于1992年至1993年期间在西班牙的拉姆萨尔湿地埃布罗三角洲进行了研究。沉积物前20厘米中的铅弹密度范围为<8900至2661000枚/公顷。类似比例的鸟类肌胃中有铅弹且肝脏铅浓度升高（>5微克/克干重）。针尾鸭和普通潜鸭（在欧洲数量均呈下降趋势）的铅弹摄入水平最高，分别为70.8%和69.2%。针尾鸭的身体状况指数与肌胃中的铅弹数量和肝脏铅浓度呈负相关。暴露水平高于西古北界迁徙路线上的其他北方国家，这些国家最近已禁止使用铅弹。
