There are generally five types of toxic entities;. However, it is unlikely that all fine particles are equally toxic in view of their different sizes and chemical components. Toxicity of fine. We don't know all the effects of exposure to every chemical. We learn about the health effects of many chemicals from human exposures and animal studies. Human. Heavy metal toxicity has proven to be a major threat and there are several health risks associated with it. The toxic effects of these metals. Untreated effluent containing toxic pollutants released from various industries represents an environmental threat and imbalances the ecological equilibrium. A. In second part, various tunable features of LMOF are described. Abstract. Hazardous and toxic chemical species are omnipresent and predominantly. Several heavy metals are found naturally in the earth crust and are exploited for various industrial and economic purposes. Among these heavy metals. Many national authorities have programmes in place to monitor the food supply. Dioxins are highly toxic and can cause reproductive and. Various types of Occupational Exposure Limits (OELs) have been established by a number of organizations, and are listed on many of OSHA's Safety and Health. Poison Sumac. 3 / This woody shrub grows in wet, swampy areas all over the U.S. Each stem has 7 to 13 leaves and clusters of green.