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1.巴黎绿新西兰不考虑为其注册;菲律宾严禁在农业上使用或销售;前苏联禁止用于农业。2.碳氯灵哥伦比亚禁止用于烟草栽培或商业销售;德国禁止用于植物保护剂;新西兰制造商自愿停止在市场上销售。3.狄氏剂欧共体禁止使用或销售;阿根廷禁止用作杀虫剂;奥地利将其列为“高毒级毒品”,持有特别执照,方可制造和销售;保加利亚已停止在农业上使用;加拿大已逐步取消使用;哥 相似文献
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以 6 ,6″-二甲基 - 4′-苯基 - 2 ,2′∶ 6′,2″-三联吡啶 (TPY )为络合剂 ,用分光光度法测定水中铁的含量。进行了波长、TPY乙醇溶液用量及显色时间等条件的选择。该分析方法表观摩尔吸光系数为 2 .17× 10 5 dm3· mol- 1 · cm- 1 ,变异系数为 3.9% ,加标回收率为 96 .4%~ 10 5 .6 %。[关键词 ]6 ,6″-二甲基 - 4′-苯基 - 2 ,2′∶ 6′,2″-三联吡啶 ;分光光度法 ;铁 ;水质分析以 6 ,6″-二甲基 - 4′-苯基 - 2 ,2′∶ 6′,2″-三联吡啶 (TPY )为络合剂 ,用分光光度法测定水中铁的含量。进行了波长、TPY乙醇溶液用量及显色时间等条件的选择。该分析方法表观摩尔吸光系数为 2 .17× 10 5 dm3· mol- 1 · cm- 1 ,变异系数为 3.9% ,加标回收率为 96 .4%~ 10 5 .6 %。 相似文献
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Environmental contamination from electronic waste recycling at Guiyu, southeast China 总被引:4,自引:0,他引:4
Anna Leung Zong Wei Cai Ming Hung Wong 《Journal of Material Cycles and Waste Management》2006,8(1):21-33
The disposal, recycling, and part salvaging of discarded electronic devices such as computers, printers, televisions, and
toys are now creating a new set of waste problems. This study is aimed at identifying the sources and quantifying the pollution
levels generated from electronic waste (e-waste) activities at Guiyu, Guangdong Province, China, and their potential impacts
on the environment and human health. The preliminary results indicate that total polycyclic aromatic hydrocarbons (PAHs) in
soil obtained from a printer roller dump site was 593 μg/kg dry weight (dry wt.) and in sediment from a duck pond, the PAH
concentration was 514 μg/kg (dry wt.). Sediment from the Lianjiang River was found to be contaminated by polychlorinated biphenyls
(743 μg/kg) at a level approaching three times the Canadian Environmental Quality Guidelines probable effect level of 277 μg/kg.
Total mono- to hepta-brominated diphenyl ether homologue concentrations (1140 and 1169 μg/kg dry wt.) in soils near dumping
sites were approximately 10–60 times those reported for other polybrominated diphenyl ether-contaminated locations in the
world. In-house study on the open burning of cable wires showed extremely high levels of polychlorinated dibenzo-p-dioxins and dibenzofurans resulting in 12419 ng toxic equivalents (TEQ)/kg of waste input and 15 610 ng TEQ/kg for two separate
tests, respectively, which were about three orders of magnitude higher than those for the open burning of household waste.
High levels of Cu (712, 528, and 496 mg/kg), exceeding the new Dutch list action value, were determined for soil near the
printer roller dumping area, sediment from Lianjiang River, and soil from a plastic burn site, respectively. A more thorough
study is underway to elucidate the extent of contamination of toxic pollutants in different ecological compartments to establish
whether these pollutants are bioaccumulated and biomagnified through food chains. Assessments of human health impacts from
oral intake, inhalation, and dermal contact will be subsequently investigated.
An erratum to this article is available at. 相似文献
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《再生资源与循环经济》2015,(6)
<正>绿篱行动时严查重点有:1.走私国家禁止进口物品;2.倒卖、租借进口许可证;3.低报价格、伪报数量品质等问题。绿篱行动是国家严抓国防的开始,既然是初始阶段,则方向是最根本的走私问题;虽然有明文规定严查批文倒卖行为,但是实际重点方向是严查走私和货物的质量。港口贸易商在13年艰难生存环境下,已经经历了一批优胜劣汰的选择。目前港口都是比较有实力的贸易商,而进口方面也相对秩序化:高压废膜多是90以上中高端料,而低 相似文献
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黄孢原毛平革菌的生长及降解石油条件的优化 总被引:2,自引:0,他引:2
在限氮振荡的条件下研究了藜芦醇、Tween-80、草酸、H2O2对黄孢原毛平革菌(P.C.菌)的生长量和石油降解性能的影响。实验结果表明:藜芦醇质量浓度低于0.05 g/L时促进P.C.菌的生长,高质量浓度时抑制P.C.菌的生长,石油降解率随藜芦醇质量浓度增加先升高后下降;Tween-80质量浓度低于7 mg/L时,P.C.菌生长量和石油降解率均随Tween-80质量浓度增大而增加,Tween-80质量浓度大于其临界胶束浓度时,P.C.菌生长量和石油降解率均低于未加Tween-80时;添加草酸抑制P.C.菌的生长,草酸质量浓度为35 mg/L时石油降解率最高,草酸质量浓度为350 mg/L时石油降解率低于未加草酸时;加入H2O2的体系中,石油降解率明显高于无H2O2体系。 相似文献
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1.镉丹麦不准生产和进口镉的产品;新西兰将镉产品列为“危险毒物”,仅供商业用户使用;瑞典规定不能用作稳定剂或颜料,用含镉化合物做稳定剂或颜料的产品不能作为商、品进口。2.二硫化碳新西兰规定,如将二硫化碳用作农药将不予登记;菲律宾规定,除使用合格的熏蒸剂熏蒸农产品外禁止其它方面使用。 相似文献
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再生塑料粉煤灰复合材料井盖 总被引:1,自引:0,他引:1
莫志深 《再生资源与循环经济》2008,1(1)
将废塑料、粉煤灰、农作物秸杆等固体废弃物通过自主创新技术成功地制备了市政工程制品:井盖、井箅等.具有抗压、抗冲击性能优良;成本低;环境友好;美观;安全等特性. 相似文献
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本文介绍了用于回收次氯酸化尾气及烃化尾气中丙烷的装置.工艺上采用真空脱氧去除尾气中的氧,使其降至0.5%以下;用水洗和碱洗去除尾气中的氯化氢,以防腐蚀设备和装置;最后压缩回收丙烷.该工艺成熟、效果明显。 相似文献