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Indoor Air Chemistry: Cleaning Agents, Ozone and Toxic Air Contaminants

Indoor secondary pollutants from cleaning product and air freshener use in the presence of ozone

This study investigated the formation of secondary pollutants resulting from household product use in the presence of ozone. Experiments were conducted in a 50-m chamber simulating a residential room. The chamber was operated at conditions relevant to US residences in polluted areas during warm-weather seasons: an air exchange rate of 1.0 h 1 and an inlet ozone concentration of approximately 12...

Cleaning products and air fresheners: exposure to primary and secondary air pollutants

Building occupants, including cleaning personnel, are exposed to a wide variety of airborne chemicals when cleaning agents and air fresheners are used in buildings. Certain of these chemicals are listed by the state of California as toxic air contaminants (TACs) and a subset of these are regulated by the US federal government as hazardous air pollutants (HAPs). California’s Proposition 65 list ...

Cleaning products and air fresheners: emissions and resulting concentrations of glycol ethers and terpenoids.

UNLABELLED Experiments were conducted to quantify emissions and concentrations of glycol ethers and terpenoids from cleaning product and air freshener use in a 50-m3 room ventilated at approximately 0.5/h. Five cleaning products were applied full-strength (FS); three were additionally used in dilute solution. FS application of pine-oil cleaner (POC) yielded 1-h concentrations of 10-1300 microg/...

بررسی اثر زمان ماند، دوز ازن و رطوبت نسبی بر کارایی فرایند ازن‌زنی کاتالیزوری در حذف زایلن از جریان هوای آلوده

Background and aimsThe catalytic ozonation is an efficient process for the degradation of volatile organic compounds from contaminated air stream. This study was aimed at investigating the efficacy of catalytic ozonation process in removal of xylene from the polluted air stream andthe influence of retention time (gas flow rate), inlet ozone dose and relative humidity on this performanceMethodst...