| Expansion of the global market for electrical and electronic products continues to accelerate, while the lifespan of the products is dropping, resulting in a corresponding explosion in electronic scrap. These devices often contain a variety of toxic metals (e.g., lead),and these subsequently create substantial problems with regard to handling, recycling and disposal of obsolete products. Unregulated disposal will bring many problems. For the present, however, the electronic wastes (e-waste) recycling sector in many places of our country remains largely unregulated.It is poorly studied with regard to its impacts on the health of recycling workers and surrounding communities. This study was designed to study on the relation between e-waste unregulated disposal and healthy, especially heavy metals to healthy. Guiyu is a small town that has more than 10 years' e-waste unregulated disposal history. After collecting umbilical cord blood, Pb and Cd levels were been measured. Furthermore, An assay based on the polymerase chain reaction restriction fragment length polymorphism(PCR-RFLP) technique of restriction enzyme MspI was used to determine the genotype of the ALAD gene. 121 specimens of umbilical cord blood were collected in Yaohui hospital, including 68 specimens were males and 53 specimens were females. Guiyu group had 89 specimens and control group had 32 specimens. Blood lead levels and cadmium levels were measured with graphitefurnace atomic absorption spectrometry, Furthermore related 121 lying-in women were surveyed about environmental factors and healthy situations with a face to face questionnaire. Data were analyzed with multiple regression for the environmental factors which affected the lead level and cadmium levels in umbilical cord blood. The results were followed:... |
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