Airborne enteric bacteria and viruses from spray irrigation with wastewater
Author(s) -
B. Teltsch,
E. Katzenelson
Publication year - 1978
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.35.2.290-296.1978
Subject(s) - aerosolization , bacteria , wastewater , irrigation , environmental science , relative humidity , biology , microbiology and biotechnology , environmental chemistry , environmental engineering , chemistry , agronomy , meteorology , inhalation , genetics , physics , anatomy
The relationship between bacterial concentrations in wastewater used for spray irrigation and in the air was examined. Aerosolized coliforms were detected when their concentration was 10(3)/ml or more in the wastewater. Relative humidity and solar irradiation appeared to affect viable bacteria in the air; a positive correlation was found between relative humidity and the number of aerosolized bacteria. The correlation between solar irradiation and bacterial level, on the other hand, was negative. During night irrigation, up to 10 times more aerosolized bacteria were detected than with day irrigation. Wind velocity did not play an important role in the survival of aerosolized bacteria. Echovirus 7 was isolated in 4 out of 12 air samples collected 40 m downwind from the sprinkler.
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