A status report on the U.S. national dioxin study

In 1983, the US Environmental Protection Agency (EPA) embarked on an extensive investigation of the presence and extent of contamination of the national environment by CDDs/CDFs. This status report is a prelude to a final report to be delivered to the US Congress in December, 1985.     

Interaction of different forms of graphene with chicken embryo red blood cells

With the rapid development of graphene synthesis and functionalization approaches, graphene and its related derivatives have shown great potential in many applications in material science, including biomedical applications. Several in vitro and in vivo studies clearly showed no definitive risks, while others have indicated that graphene might become health hazards. In this study, we explore the biocompatibility of graphene-related materials with chicken embryo red blood cells (RBC). The hemolysis assay was employed to evaluate the in vitro blood compatibility of reduced graphene, graphene oxide, and reduced graphene oxide, because these materials have recently been used for biomedical applications, including injectable graphene-related particles. This study investigated structural damage, ROS production and hemolysis of chicken embryo red blood cells. Different forms of graphene, when incubated with chicken embryo RBC, were harmful to cell structure and induced hemolysis.     

WETLAND BOUNDARIES IN THE NEW JERSEY PINELANDS: ECOLOGICAL RELATIONSHIPS AND DELINEATION1

Wetland protection regulations and guidelines often require the delineation of precise wetland boundaries on a case-by-case basis. In this study, conducted in the New Jersey Pinelands, an ecological characterization of vegetation composition, soil and hydrologic relationships along upland to wetland Pinus rigida - dominated transittions provided the basis for a multiparameter approach to wetland boundary delineation. The transitional data set was analyzed by direct gradient analysis, cluster analysis and ordination. It is concluded that vegetation composition can be a principal factor in delineating wetland boundaries along natural upland to wetland transitions. However, where distinct vegetation changes are not observed, a feature of our study sites, a multiparameter approach should be used.     

技术革新与清洁生产：可能性与局限性

许多技术和相关学科都可以促进清洁生产.以生命科学和生物技术为基础的技术在推动全球生产系统走向可持续性方面将发挥越来越大的作用.作为驱动者，科技的进步还不足以让工业采用清洁生产.还需要例如市场力量和政府政策.     

Creating an emission model based on portable emission measurement system for the purpose of a roundabout

Environmental Science and Pollution Research - Road transport is the main source of pollution to the environment in urban areas; therefore, there is a need to accurately estimate the amount of...