介绍了Kirk—Othmer Encyclopedia of Chemical Technology（化工技术百科全书）（第五版）电子图书网络版数据库，并对该数据库使用方法和检索途径作出了说明，且结合实例简单地介绍了该数据库的检索方法。

Kirk-Othmer Encyclopedia of Chemical Technology数据库介绍及实例

Dose-response analysis can be carried out using multi-purpose commercial statistical software, but except for a few special cases the analysis easily becomes cumbersome as relevant, non-standard output requires manual programming. The extension package drc for the statistical environment R provides a flexible and versatile infrastructure for dose-response analyses in general. The present version of the package, reflecting extensions and modifications over the last decade, provides a user-friendly interface to specify the model assumptions about the dose-response relationship and comes with a number of extractors for summarizing fitted models and carrying out inference on derived parameters. The aim of the present paper is to provide an overview of state-of-the-art dose-response analysis, both in terms of general concepts that have evolved and matured over the years and by means of concrete examples.

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Dose-Response Analysis Using R

THE JOURNAL OF BIOLOGICAL CHEMISTRY: The Biochemical Behavior of LeadL I. Influence of Calcium, Phosphorus, and Vitamin D on Lead in Blood and Bone

Nano-silver is used in an increasing number of products. Some of the applications have resulted in the concern of governments and the public, since little is known about the potential risks of nano-silver. In this review, an inventory is made to identify knowledge gaps that have to be filled before risks for both man and the environment can be assessed as reliable as for ‘non-nanosized’ chemicals. It is hypothesized that the toxic effects of nano-silver are due to a combination of the specific properties of silver nanoparticles and the generation of ions from them. The main topic for future research is validation of our ‘0-hypothesis’ that toxic effects of nano-silver are proportional to the activity of free silver ions released by the nanoparticles. Furthermore, it must be determined whether – or to what extent – nano-silver particles will enter the body. The outcomes of these tests will determine the requirements for further toxicity testing.

Nano-silver – a review of available data and knowledge gaps in human and environmental risk assessment

In the last few years, the advent of metal halide perovskite solar cells has revolutionized the prospects of next-generation photovoltaics. As this technology is maturing at an exceptional rate, research on its environmental impact is becoming increasingly relevant.

Toxicity of organometal halide perovskite solar cells

Cobalt is a naturally occurring element with a number of radioactive isotopes. It is a silvery grey solid at room temperatures. Sources of exposure are both natural and anthropogenic with the largest source of exposure to the general population is through the food supply. This Concise International Assessment Document (CICAD) evaluates the scientific literature on the health and environmental effects of cobalt and cobalt compounds based on selected national and regional evaluations. This CICAD focuses on the stable isotopes of cobalt rather than radioactive ones.

Cobalt and inorganic cobalt compounds

http://www.radioecology.info/Bergen2008/proceedings/117.%20Andersson%20et%20al%20O.pdf

Protection of the environment from ionising radiation in a regulatory context (protect): proposed numerical benchmark values.

Dose rate benchmarks are required in the tiered approaches used to screen out benign exposure scenarios in radiological ecological risk assessment. Such screening benchmarks, namely the predicted no-effect dose rates (PNEDR), have been derived by applying, as far as possible, the European guidance developed for chemicals. To derive the ecosystem level (or generic) PNEDR, radiotoxicity EDR(10) data (dose rates giving a 10% effect in comparison with the control) were used to fit a species sensitivity distribution (SSD) and estimate the HDR(5) (the hazardous dose rate affecting 5% of species with a 10% effect). Then, a multi-criteria approach was developed to justify using an assessment factor (AF) to apply to the HDR(5) for estimating a PNEDR value. Several different statistical data treatments were considered which all gave reasonably similar results. The suggested generic screening value of 10 microGy h(-1) (incremental dose rate) was derived using the lowest available EDR(10) value per species, an unweighted SSD, and an AF of 2 applied to the estimated HDR(5). Consideration was also given to deriving screening benchmark values for organism groups but this was not thought to be currently appropriate due to few relevant data being currently available.

https://iopscience.iop.org/article/10.1088/0952-4746/30/2/S02/pdf

A multi-criteria weight of evidence approach for deriving ecological benchmarks for radioactive substances

2,4,6-tribromophenol and other simple brominated phenols

The layout and pagination of this pdf file are not necessarily identical to those of the hard copy First draft prepared by Mr P.

Paul Howe

Papers

Cobalt and inorganic cobalt compounds

Protection of the environment from ionising radiation in a regulatory context (protect): proposed numerical benchmark values.

A multi-criteria weight of evidence approach for deriving ecological benchmarks for radioactive substances

2,4,6-tribromophenol and other simple brominated phenols

Silver and silver compounds : environmental aspects