VOLATILE ORGANIC COMPOUNDS

In the past, when human bioeffluents were considered to be the most important pollutants of indoor air, carbon dioxide (C02) was generally accepted as an indicator for indoor air quality (IAQ). C02 has lost this function partly because today many more sources than human beings emit pollutants into i[r]

of the acetaldehyde mixing ratio. Methanol has been mea-sured for a number of years (e.g., Singh et al., 1995) and itsdistributions are beginning to be understood (e.g., Heikes etal., 2002; Galbally et al., 2002; Millet et al., 2008), however,the sources of methanol in the MCMA are uncertain, givent[r]

measurement uncertainty and the details of determiningthe source number and dealing with missing values are alsopresented as important parts of the data analysis process.This study demonstrates the feasibility of the expandedmodel to identify sources in complex VOC systems andextract useful informat[r]

ROUTE OF EXPOSURE People are exposed to 1,1,1-trichloroethane usually by breathing contaminated air or by drinking contaminated water and eating contaminated food.. HEALTH EFFECTS People[r]

for a specific product category (“exempt compounds”) are subtracted from the total volatile material to determine the final VOC content for the product. Method 310 is also used to determine the percent by weight of the ROCs contained in aerosol coating products, for the purpose of dete[r]

intermittent pseudomonas aeruginosa airway colonization in cysticfibrosis patients: 15 years experience. J Cyst Fibros 2008, 7:523–530.12. Armstrong DS, Grimwood K, Carlin JB, Carzino R, Olinsky A, Phelan PD:Bronchoalveolar lavage or oropharyngeal cultures to identify lowerrespiratory pathogens in i[r]

- isomers have been found to cause weakness,nausea, and vomiting from their adverse effects on the gastrointestinal tract, andtremor and cramps due to their effects on the CNS. 6 11.3.3 The Aromatic Hydrocarbons The aromatic hydrocarbons have a basic six-carbon ring configuration with sixhydrogen ato[r]

JWBK0117-1.3 JWBK117-Quevauviller October 10, 2006 20:10 Char Count= 0Standard Methods of Main Parameters 43BOD could be achieved by the biosensor-based methods (Liu and Mattiasson, 2006).These alternative techniques are presented in the following paragraphs.1.3.3.2 Chemical Oxygen DemandThe COD tes[r]

JWBK0117-1.3 JWBK117-Quevauviller October 10, 2006 20:10 Char Count= 0Standard Methods of Main Parameters 43BOD could be achieved by the biosensor-based methods (Liu and Mattiasson, 2006).These alternative techniques are presented in the following paragraphs.1.3.3.2 Chemical Oxygen DemandThe COD tes[r]

Na, K., Kim, Y. P., and Moon, K. C.: Diurnal characteristics ofvolatile organic compounds in the Seoul atmosphere, Atmos. En-viron., 37(6), 733–742, 2003.Ochiai, N., Tsuji, A., Nakamura, N., Daishima, S., and Cardin, D.B.: Stabilities of 58 volatile organic compounds