越南使用剂和其他除草剂的范围和使用模式
Jeanne Mager Stellman1, Steven D Stellman, Richard Christian
1Department of Health Policy and Management, Mailman School of Public Health, Columbia University, 600 West 168th Street, New York, New York 10032, USA. jms13@columbia.edu
Nature
|April 18, 2003
概括
这项研究修订了越南战争期间喷除草剂的估计,揭示了显著更高的二氧化物污染和数百万越南平民的直接暴露. 新数据使二氧化碳估计增加了一倍,并详细说明了军事除草剂的目标.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 军事史 军事史 军事史
背景情况:
- 美国军队在越南战争 (1961-1971) 中广泛使用除草剂,包括剂.
- 之前对除草剂分布和二氧化污染的估计是基于不完整的数据.
- 军用除草剂的应用率远远超过了国内除草剂的应用率.
研究的目的:
- 提出对越南战争期间除草剂喷范围和分布的修订估计.
- 为了更准确地评估来自军事除草剂使用的二氧化污染.
- 为了澄清越南人口对这些化学品的直接暴露.
主要方法:
- 利用更完整的数据集,将历史喷雾库存扩大了700多万升.
- 综合村庄人口普查数据以估计直接的平民暴露.
- 确定了用于除草剂应用的特定军事目标,以了解喷模式.
主要成果:
- 修订后的喷雾清单包括了更严重的二氧化污染除草剂.
- 据估计,喷的二氧化总量几乎翻了一番.
- 根据乡村人口普查数据,数百万越南人可能直接接触过除草剂.
结论:
- 经过修订的估计表明,除草剂的使用和二氧化污染的规模比以前理解的要大.
- 这些发现强调了越南人口对有害化学品的广泛直接暴露.
- 更清楚地了解军事除草剂的向,可以提供更连贯的喷操作图景.
相关概念视频
Hypothesis: Accept or Fail to Reject?
The outcome of any hypothesis testing leads to rejecting or not rejecting the null hypothesis. This decision is taken based on the analysis of the data, an appropriate test statistic, an appropriate confidence level, the critical values, and P-values. However, when the evidence suggests that the null hypothesis cannot be rejected, is it right to say, 'Accept' the null hypothesis?
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null hypothesis and 'fail to...
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null hypothesis and 'fail to...
Effects of Chemicals: Overview
Drugs, encompassing various chemical compounds from natural sources, lab synthesis, or genetic engineering, elicit different biological responses in living organisms. Some of these responses are desirable or therapeutic, while others are undesirable. The primary goal of administering a drug is to achieve a therapeutic effect, that is, to address a specific disease or health condition. Any concurrent effects outside of this therapeutic outcome are considered undesirable. These undesirable...
Types of Toxins
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Local Anesthetics: Common Agents and Their Applications
Local anesthetics (LAs) are commonly used for various applications in medical and dental procedures. Some of the common agents used are cocaine, lidocaine, and bupivacaine.
Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
Chemical Agents for Microbial Control
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
Microbial Bioremediation of Pesticides
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...


