****!!!!****!!!!**** "Spray-applied solutions of ClO2 at measured concentrations of 3000−4000 ppm were effective against B. anthracis on several nonporous building surfaces but ineffective or not consistently effective on porous surfaces and soils" "If porous materials (carpet and particle board) were immersed in a 1000 ppm, 6 LR of B. anthracis was achieved. Improved effcacy through immersion at a lower concentration suggests that the limited effcacy of spray-applied liquids could be due to spray-application parameters (e.g., droplet size or insuffcient number of applications). ****!!!!!*** Perhaps ClO2 in the aqueous phase could be lost through volatilization from spray droplets or from the wetted surface during the application." "Aqueous solutions of ClO2 5000− 6000 mg/L were produced via easy-use product with sodium chlorite and sodium bisulfate. When applied as a ***fog,*** the ClO2 solutions were effective on a number of materials." "spore populations of B. subtilis... effective decontamination using ClO2 gas levels ranging from 350 to 750 ppm. In a series of six small-chamber experiments conducted at either 100 or 200 ppm of ClO2 (75% RH, 24 °C; CTs ranging from 2 to 12 h), several building materials were effectively decontaminated" "aqueous ClO2 can be generated electrochemically using sodium chlorite and sodium bromide." "relatively cooler temperature that may be encountered in a subway system (11 °C), the lower temperature greatly diminished the decontamination effcacy128 In this same study, lowering RH from 75 to 50% (at 24 °C) also greatly reduced effcacy."