This review presents a brief overview of the health effects and exposures of two criteria pollutants--ozone and particulate matter--and two toxic air pollutants--benzene and formaldehyde. These pollutants were selected from the six criteria pollutants and from the 189 toxic air pollutants on the basis of their prevalence in the United States, their physicochemical behavior, and the magnitude of...

Air pollution are basically the foreign material in the air—can be manmade or occur naturally, and are concentrated where people are concentrated. Pollution is injurious to health and its prevention places an economic burden on the citizen. Further emission reductions from automobiles, and transportation measures and programs will be more difficult to accomplish, but the challenge has been pres...

the sscp technique is based on the appearance of new “refolding” conformations during electro-phoresis due to mutation. in order to develop a simple, non-radioactive sscp analysis method so that it can reliably detect single nucleotide changes in pcr products up to 500 bp in length, extensive optimisation trials were performed . the best separation of sscp bands of pcr products up to 500 bp in ...

introduction: high-dose radioactive iodine therapy in differentiated thyroid cancer (dtc) may adversely affect the salivary gland function. this study is aimed to evaluate the effect of radioactive iodine (rai) with dose of 100 mci in dtc patients compared to lower doses of less than 30 mci in hyperthyroid cases. methods: fifty four patients (13 men and 41 women) age: 42.3±14.3 (21-71) years w...

contamination with radiopharmaceuticals in nuclear medicine centers in addition to being a health concern requires time-consuming decontamination efforts. according to nrc (nuclear regulatory commission) contamination should be monitored in nuclear medicine centers where radiopharmaceuticals are prepared and administrated at the end of each working session; otherwise, contamination spread to ot...

Here, we introduce a highly porous functional mesoscopically silica-polymer composite based on silica monolith-conjugated thiourea/formaldehyde copolymer. The developed nanostructure enables selective and fast removal of the radioactive pollutants strontium (Sr[II]) cesium (Cs[I]) ions from contaminated seawater. silica/polymer was synthesized by introducing solution into tetramethoxy orthosili...

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