During an investigation of air-borne microorganisms, the net electric charges carried by individual cells at various relative humidities were studied using a Millikan apparatus (1947), a device in which the vertical rates of movement of the cells under gravity and under imposed electric fields were measured. Cell size and charge could have been calculated directly from such measurements if the ...

Allergy is one of the oldest maladies of mankind. Allergy which manifested itself in the form of asthma was known in ancient times. For a long time allergy could not be differentiated from other ailments with which it resembled in many respects. In this paper we study of allergenic significance of certain air borne fungi of the Lucknow atmosphere. Keyword: Allergenic significance, fungal spores...

Airborne particles may constitute a health risk to man. For example, diesel emissions have been shown to contribute to the incidence of lung cancer and have been classified as probably carcinogenic to humans (IARC monograph, 1988). Short-term tests for genotoxicity has shown not only diesel exhaust, but also particles from different outdoor and indoor sources be genotoxic. These particles inclu...

The COVID-19 pandemic has brought an unprecedented crisis to the global health sector. When discharging patients in accordance with throat or nasal swab protocols using RT-PCR, potential risk of reintroducing infection source humans and environment must be resolved. Here, 14 including 10 subjects were recruited; exhaled breath condensate (EBC), air samples surface swabs collected analyzed for S...