[Epidemiological analysis for Quzhou pesticide poisoning of year 2008 to 2010].

Objective: To provide scientific evidence of making measures for prevention of pesticide poisoning, the investigation on the condition of pesticide poisoning was carried out in Quzhou.

Methods: Registration data of pesticide poisoning from 2008 to 2010 in Quzhou were collected and statistically analyzed by SPSS 12.0.

[An FTIR and XPS study of immobilization of chromium with fly ash based geopolymers].

Immobilization of Cr3+ with fly ash geopolymers was investigated by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopic (XPS) techniques. The chromium sludge, as Cr(OH)3, was prepared with chemical precipitation method. The amounts of aluminum and silicon leached before and after the chromium sludge addition were measured using ICP-AES.