关键词：农药；水资源；土地利用；水污染抽样；降解；回归分析；

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What follows is a summary of publicly available USGS data for pesticide concentrations in surface water and sediments within the Sacramento-San Joaquin Delta region from the years 1990 through 2010. Data were retrieved though the USGS National Water Information System (NWIS) database, a publicly available online-data repository (U.S. Geological Survey, 1998), and from published USGS reports.

关键词：农药；地质调查；水文数据

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A method was developed to calculate annual county-level pesticide use for selected herbicides, insecticides, and fungicides applied to agricultural crops grown in the conterminous United States from 1992 through 2009. Pesticide-use data compiled by proprietary surveys of farm operations located within Crop Reporting Districts were used in conjunction with annual harvested-crop acreage reported by the U.S. Department of Agriculture National Agricultural Statistics Service (NASS) to calculate use rates per harvested-crop acre, or an estimated pesticide use (EPest) rate, for each crop by year. Pesticide-use data were not available for all Crop Reporting Districts and years. When data were unavailable for a Crop Reporting District in a particular year, EPest extrapolated rates were calculated from adjoining or nearby Crop Reporting Districts to ensure that pesticide use was estimated for all counties that reported harvested-crop acreage. EPest rates were applied to county harvested-crop acreage differently to obtain EPest-low and EPest-high estimates of pesticide-use for counties and states, with the exception of use estimates for California, which were taken from annual Department of Pesticide Regulation Pesticide Use Reports.

关键词：农药；环境影响；除草剂；杀虫剂；杀菌剂；农作物

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PESP is a voluntary program that fosters partnerships with pesticide users, educators, and related organizations who engage in reducing potential health and environmental risks associated with pests and pesticide use and in implementing pollution prevention strategies. PESP members are organized into one of four groups (according to pesticide use where people Live, Work, Play, and Farm) and progress through three tiered steps (Bronze, Silver, and Gold) to achieve the maximum benefit in the program. PESP members distinguish themselves as stewardship leaders in their respective fields of business and practice.

关键词：农药；环境风险；健康风险；害虫防治；污染防治

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On August 28, 2008, at about 10:35 p.m., a runaway chemical reaction occurred inside a 4,500 gallon pressure vessel known as a residue treater, causing the vessel to explode violently in the methomyl unit at the Bayer CropScience facility in Institute, West Virginia. Highly flammable solvent sprayed from the vessel and immediately ignited, causing an intense fire that burned for more than 4 hours. The fire was contained inside the Methomyl-Larvin insecticide unit by the Bayer CropScience fire brigade with mutual aid assistance from local volunteer and municipal fire departments. The incident occurred during the restart of the methomyl unit after an extended outage to upgrade the control system and replace the original residue treater vessel. Two company employees who had been dispatched by the control room personnel to investigate why the residue treater pressure was increasing were near the residue treater when it ruptured. One died from blunt force trauma and burn injuries sustained at the scene; the second died 41 days later at the Western Pennsylvania Burn Center in Pittsburgh, Pennsylvania. Six volunteer firefighters who assisted in the unit fire suppression activities and two contractors working at the facility were treated for possible toxic chemical exposure.

关键词：农药；化学爆炸；杀虫剂；有毒化学物质

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The HHE Program evaluated surface contamination from spills of sea lamprey pesticides that occurred in the 1960s and 1970s at a biological station. HHE Program investigators took samples of carpet that were thought to have been contaminated with pesticide and took wipe samples from surfaces. Yellow stains were seen on carpet, walls, and unsealed concrete floors. The carpet had been installed over unsealed concrete. Pesticide was found on the carpet and wipe samples from areas that were visibly stained. HHE Program investigators recommended that the stained carpet be removed and that the concrete slab floor be cleaned and sealed prior to the installation of new flooring. Walls that had visible stains should be cleaned, sealed, and repainted. Investigators also measured temperature, relative humidity, carbon monoxide, and carbon dioxide and checked the heating, ventilation, and air-conditioning system in the offices and laboratory. Room air flowed from the offices into the workshop which helped keep potentially contaminated air from entering the office space. The exhaust fan in the laboratory solvent storage room was not always turned on which allowed air to flow into the nearby laboratory. This fan should be run continuously to reduce the amount of solvent vapors that can enter nearby work areas. Investigators recommended that the employer stop sampling soil and concrete that may have been contaminated during past spills. Employees were encouraged to wash their hands with soap and water after handling pesticides and avoid touching surfaces that are visibly stained. Employees should not go into offices while wearing clothes, shoes, or materials that may have pesticides on them. Investigators also recommended that the employer notify all employees about plans to renovate the building and follow up with employees after projects are completed to ensure that these activities have eliminated visible pesticide contamination on carpet, floors, and walls.

关键词：农药污染；健康危害；公共卫生；污染；生物站

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The Arroyo Colorado is an ancient channel of the Rio Grande River that extends eastward for about 90 miles from near the city of Mission, Texas through southern Hidalgo County to the city of Harlingen in Cameron County, eventually discharging into the Laguna Madre near the Cameron- Willacy County line. The tidal segment of the Arroyo Colorado, as classified by the Texas Commission on Environmental Quality (TCEQ), is between the confluence with Laguna Madre in Cameron/Willacy County to a point 100 meters (110 yards) downstream of Cemetery Road, south of Port Harlingen in Cameron County. This part of the river is also defined as a coastal natural resource area (CNRA) and a coastal wetland in the Coastal Coordination Act. Water quality monitoring over the past decade has confirmed low oxygen levels and escalated ammonia and nitrate concentrations that have contributed to multiple fish kills in the tidal segment. These sub-optimal aquatic conditions resulted in this portion of the Arroyo Colorado being placed on the Texas Water Quality Inventory and 303(d) List for high aquatic life use impairment in 2002. Numerous urban sources, such as point source wastewater discharges, have contributed to this impairment; however, according to the Arroyo Colorado Watershed Protection Plan (ACWPP), nonpoint source agricultural runoff accounts for much of the water quality issues in the tidal segment.

关键词：农药；水污染监测；水质

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近年来，随着我国石油石化行业工程建设总承包（EPC）业务的兴起，项目成本控制和过程控制能力得到了很大程度的加强，然而很多项目目前仍面临着库存数量过大、结构不合理、管理不科学、甚至不被重视等问题。如何更精细化地控制库存成为了很多行业内EPC项目的一个不小的挑战。文章以材料管理系统和组织管理为出发点，结合作者在越南化肥项目的工作经历，分析了总承包商库存控制的几个关键因素，并给出相应的合理化建议，目的是降低供应链环节成本，减少资金占用，提高工作效率，从而增强企业竞争力。

关键词：库存控制；材料管理系统；组织管理

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2013年三季度，我国在转变政府职能、创新政府管理等方面出台了一系列政策举措。这些措施的出台，表明了管理层坚定不移推进改革开放的决心，体现了中国政府进一步发挥市场机制作用，让社会投资活力有效迸发的发展方向。未来，随着制度红利的逐渐释放，必将有越来越多的市场活力被激发出来，推动中国经济转型升级的实现。

关键词：三季度；经济政策；政府职能转变；简政放权；金融改革；上海自贸区；以房养老；环境监管

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改革开放以来，投资一直是拉动经济增长的重要力量。随着固定资产投资完成额的逐年上涨，我国投资结构的问题也日益突出。本文从不同维度对投资结构进行了较为深入的分析，并以数据为依托，分析出当前我国内部投资结构中较为显著的一些问题。特别是对当前问题较为突出的民间投资，本文进行了重点分析，力图从数据中挖掘结构性问题的内因。

关键词：改革开放；投资结构；分析

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