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Viruses in wastewater aerosols
Abstract Agricultural land application of wastewater is becoming a widely used means of dealing with water scarcity and diminishing sources of unpolluted water. One of the most common forms of land application—sprinkler irrigation—poses an environmental problems in that it created wastewater aerosols. Air sampling experiments done at distances of up to 100 meters from wastewater irrigation sprinklers have detected several airborne enteroviruses: echovirus 1, 25, 29; poliovirus II, and coxsackie B1. The levels of airborne viruses found in wastewater aerosols may be potentially hazardous at any level. Since the impact of these findings on public health is not clear, epidemiological investigations by standard techniques should be conducted. It is estimated that the number of viruses isolated in environmental samples may be smaller by one or two orders of magnitude (90%–99%) than their actual number due to the limitations of virus recovery procedures. The unvailability of a reliable indicator microorganism which fulfills all the requirements for a biological indicator also makes it difficult to determine the virus level in the aerosols. Thus the scientific knowledge available today is insufficient to determine with certainty that no public health risk is created by wastewater aerosols. A comprehensive prospective study will, in all likelihood, provide answers to most questions and make it possible to assess more reliably the extent of the health risk due to wastewater aerosols.
Viruses in wastewater aerosols
Abstract Agricultural land application of wastewater is becoming a widely used means of dealing with water scarcity and diminishing sources of unpolluted water. One of the most common forms of land application—sprinkler irrigation—poses an environmental problems in that it created wastewater aerosols. Air sampling experiments done at distances of up to 100 meters from wastewater irrigation sprinklers have detected several airborne enteroviruses: echovirus 1, 25, 29; poliovirus II, and coxsackie B1. The levels of airborne viruses found in wastewater aerosols may be potentially hazardous at any level. Since the impact of these findings on public health is not clear, epidemiological investigations by standard techniques should be conducted. It is estimated that the number of viruses isolated in environmental samples may be smaller by one or two orders of magnitude (90%–99%) than their actual number due to the limitations of virus recovery procedures. The unvailability of a reliable indicator microorganism which fulfills all the requirements for a biological indicator also makes it difficult to determine the virus level in the aerosols. Thus the scientific knowledge available today is insufficient to determine with certainty that no public health risk is created by wastewater aerosols. A comprehensive prospective study will, in all likelihood, provide answers to most questions and make it possible to assess more reliably the extent of the health risk due to wastewater aerosols.
Viruses in wastewater aerosols
Fattal, B. (author) / Teltsch, B. (author)
Environmental International ; 7 ; 35-38
1982-01-01
4 pages
Article (Journal)
Electronic Resource
English
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