Indoor Residential Fate Model of Phthalate Plasticizers

Analysis of potentially toxic phthalate plasticizers used in toy manufacturing.

A plasticizer is a substance normally incorporated to a PVC resin or some other materials such as paints, to improve some of its properties as flexibility or processability. Phthalates, adipates, phosphates and some others are the main compounds used as plasticizers. Some of these compounds, as bis-(2-ethylhexyl) phthalate (DOP), are being questioned worldwide because of their potential toxicit...

Pediatric exposure and potential toxicity of phthalate plasticizers.

Phthalates are plasticizers that are added to polyvinyl chloride (PVC) products to impart flexibility and durability. They are produced in high volume and generate extensive though poorly defined human exposures and unique childhood exposures. Phthalates are animal carcinogens and can cause fetal death, malformations, and reproductive toxicity in laboratory animals. Toxicity profiles and potenc...

Phthalate ester plasticizers--why and how they are used.

UWB Indoor Delay Profile Model For Residential and Commercial Environments

We present a statistical model for the delay profile of ultra-wideband channels in indoor environments. Two kinds of profiles are defined, namely the multipath intensity profile (MIP) and the power delay profile (PDP). The MIP is he delay profile at a point in space, while the PDP is a local spatial average. The model is based on 60,000 complex frequency response measurements from 20 commercial...

Indoor radon measurements in residential dwellings in Qom, Iran

Background: Inhalation of radon and its short-lived decay products is one of the ‎most significant sources of exposure to natural radiation. Radon is the second cause ‎of lung cancer in the populations. The present study was carried out under the projects of ‎national radon, with the aim of determining the concentration of indoor in the city of Qom ‎located in the central se...