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已读[116]
发布： 2013/06/20 15:10:58
虽然果皮中含有一些营养成分,但由于目前越来越多地使用农药杀虫剂、助长剂、着色剂等,特别是进口果品更可怕,用溴甲烷剧毒农药熏过。因此吃任何水果都要洗净削皮。 同时,在给宝宝吃水果时还应注意以下几点: ...
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已读[125]
发布： 2013/06/20 15:10:54
潜伏在自来水中的罪魁祸首是三卤甲烷,包括三氯甲烷、二氯溴甲烷、三氯溴甲烷和三溴甲烷4种氯化物。三卤甲烷是净水场中用于消毒灭菌的氯,与食物的渣滓和浮游生物等有机物相互反应的产物。随着水质的恶化,自来水中氯的投放量也与日俱增,是它扮演了制造致癌物的主要角色。 ...
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已读[121]
发布： 2013/06/20 15:10:51
The Salinas Californian In 2010, the latest year for which there is readily available data, just in Monterey County, agribusiness used almost four million pounds of fumigants, including chloropicrin, methyl bromide and 1,3, dichloropropene. That's approximately 10 pounds of ...
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已读[132]
发布： 2013/06/20 15:10:44
Capital Press Lynn Epstein, a plant pathology professor at UC-Davis, received $153,289 to study alternatives to methyl bromide for strawberry nursery fumigation. Among the methods Epstein plans to examine is anaerobic soil disinfestation, which integrates heat from ...
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已读[114]
发布： 2013/06/20 15:10:40
Hardwood Floors (blog) The most popular methods are chemical baths in methyl bromide , which can have a negative environmental impact, and heat treatment, which can take more than a day, requires lots of energy, and can cause the wood to become too dry and crack. However ...
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已读[120]
发布： 2013/06/20 15:10:36
Monterey County Herald For decades, strawberry farmers relied on the fumigant methyl bromide to cleanse their fields of disease and pests before planting. But methyl bromide is being phased out under international treaty aimed at protecting the ozone layer. Every year, there ...
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已读[121]
发布： 2013/06/20 15:10:25
Register Pajaronian The new rules, which build on U.S. Environmental Protection Agency (EPA) safety measures that took effect last year, are for the chemical chloropicrin, which is either used on its own or mixed with methyl - bromide or 1,3-Dichloropropene, and then ... and more »
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已读[110]
发布： 2013/06/20 15:10:07
Fresh Fruit Portal U.S. authorities have recommended a lower temperature requirement for the methyl bromide treatment of fruit fly in blueberries, allowing exporters in Argentina and Uruguay to ship their fruit in better condition. blueberry_46420153 small. In a Federal ...
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已读[1129]
发布： 2013/06/18 16:21:58
其方法主要有:顶空法、固相微萃取法、液 液萃取法和 吹扫 捕集法[8]。本研究建立了海水中CH3Cl和CH3Br的吹扫 捕集 ...离技术是气相色谱分析最主要的环节,柱温、载气流速明显影响分离效果。因此,本实验采用Rtx 624弹性石英毛细管柱 (60m×0.32mm,1.8μm),载气:高纯N2,...
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已读[135]
发布： 2013/06/17 11:06:36
Monterey County Herald For decades, strawberry farmers relied on the fumigant methyl bromide to cleanse their fields of disease and pests before planting. But methyl ...
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