Under transmission electron microscope, RER and Golgi complex dilatation,chondriosome swell and ridge disappearance could be observed on cells of stomach epithelium mucosa of P.robusta collected from heavy pollution area.

• 在透射电镜下观察可见重污染区壮伟环毛蚓胃肠道粘膜上皮细胞中的粗面内质网（RER）出现扩张，高尔基复合体也产生扩张状，线粒体发生肿胀，线粒体嵴消失呈空泡状。