Journal of Veterinary Medical Science
Online ISSN : 1347-7439
Print ISSN : 0916-7250
ISSN-L : 0916-7250
Mutagenicity of Airborne Particulates in Sagamihara City
Yukihiko TAKAGIKasumi SAKIYAOsamu ENDOHSumio GOTOKen-ichi KOHZAKIMotohide MURATAHidetsuru MATSUSITA
Author information
JOURNAL FREE ACCESS

1992 Volume 54 Issue 2 Pages 193-199

Details
Abstract

Airborne particulates in Sagamihara city were collected on quartz fibre filters using a high-volume air sampler for 14 days in each month from July 1984 to June 1985. Organic components in airborne particulates were extracted by the ultrasonic extraction method using benzene-ethanol(3:1 v/v) as an extracting solvent. The mutagenicities of airborne particulates extract were measured by the pre-incubation method using Salmonella typhirnurium strains TA100 and TA98 with and without S-9mix. The concentration of airborne particulates was nearly the same level throughout the survey period, but the content of extract in particulates of winter was higher than those of other seasons. All the airborne partiuclates extracts showed positive mutagenic response to both strains with and without S-9mix. The average of mutagenic activities (revertants/m3 air) in winter was significantly higher than those in summer and spring. Furthermore, mutagenic activities fluctuated sharply in one month from several to ten times compared with the normal level, depending upon sampling days, and tended to be lower on Sundays and holidays in summer and new year holidays. In many days mutagenic activities without S-9mix were comparatively higher than those with S-9mix. The existence of nitroarene was surveyed using TA98NR strain. Nitroarene was found to be higher concentration in summer than in winter.

Content from these authors
© The Japanese Society of Veterinary Science
Next article
feedback
Top