title: [Effects of photochemical smog from a flow reactor on bacteria. I. Determination of the effects of photochemical smog on bacteria].
abstract: To measure the damage to bacteria from photochemical smog Serratia marcescens, Staphylococcus epidermidis, Micrococcus luteus and spores of Bacillus cereus have been exposed to defined gas-mixtures. A smog-simulation-chamber has been used which allowed adjustment of reproducible and longterm constant smog formations due to the flow system. Two methods have been applied to examine the bactericidal effects of the photo-chemical smog: adsorption of bacteria to membrane filters and spraying on silk threads. Smog mixtures formed by olefines (propene 4200 ppb, isobutene 3000 ppb, trans-2-butene 1600 ppb) and nitrogene oxides (500-700 ppb) showed bactericidal effects at ozone levels of 500 ppb. The survival of exposed bacteria is influenced less by gasing with 500 ppb ozone than with the smog mixture.
mesh_terms: D000391:Air Microbiology; D000393:Air Pollutants; D000475:Alkenes / Q000494:pharmacology; D001409:Bacillus cereus / Q000187:drug effects; D001419:Bacteria / Q000187:drug effects*; D001431:Bacteriological Techniques; D008837:Micrococcus / Q000187:drug effects; D009585:Nitrogen Dioxide / Q000494:pharmacology; D010126:Ozone / Q000494:pharmacology; D010782:Photolysis; D012706:Serratia marcescens / Q000187:drug effects; D012905:Smog; D013045:Species Specificity; D013212:Staphylococcus epidermidis / Q000187:drug effects; D014466:Ultraviolet Rays
chemical_list: D000393:Air Pollutants; D000475:Alkenes; D012905:Smog; D010126:Ozone; D009585:Nitrogen Dioxide
vernacular_title: Untersuchungen zur Wirkung von photochemischem Smog aus einem Strömungsreaktor auf Bakterien. I. Mitteilung: Nachweis der Wirkung von photochemischem Smog auf Bakterien.