Document Jrpxj1m14YMoy5ywKr3zogdYe

Industrial Hygiene Digest Jum,. 196$ 601 Air Pollution Study. S. Carn*. Proe. Roy. Soc. Med. $6, 620.624 (July, 1964). The Medical Officer* of Health of the London borough*, in a*oeiation with the Department of 5cicnce and lnduttrial Reiearch (DSIR), approached the Reeearch Committee of the College of General Practitioner*, auggeiting a ttudy of the effect* of air pollution on respiratory illnes* in the population of London. Only through the general practitioner could tne whole family be studied. The survey wa* undertaken during the winter of 1962.1962. It was found that there were two peak* of reipiratory illnesses coinciding with the fog at the beginning of December and the freeze.up from the end of December until the beginning of March - - APCA Absts. 602 Lo Angeles Air Pollution and Respiratory Symptom*. Relationhip During a Selected 28-Day Period^ D.I. Hammer, et al. Arch. Environmental Health 10. 475.480 (March, 196S). Two populations of student nurses, on* in Los Angeles and on* in Santa Barbara, reported selected respiratory symptoms by means of daily symptom diaries. The prevalence of these symptoms and their relationship to a single air pollutant during a 28.day period is described. These data are part of a 32.month study ending in June, 1964. A time-associated relationship between daily oxidant levels and the nfdiri'.daily frefjtiilAey of eye discomfort in the Los Angeles group was observed during the study period. This relationship was not observed for any of the other symptoms. The mean 28.day frequencies of aU symptoms reported by the Los Angeles student nurses were equal to, or greater than, those reported by the Santa Barbara student nurse*. - - Authors summary 603 Some Laboratory and Epidemiological Aspect* of Air Pollution Carcinogenesis. E. L. Wynder and D. Hoffmann. J. Air Poll. Control Assn, li. 135-159 (April, 1965). Chemical, analytical and biological studies were completed on the organic matter of large air pollution samples from Detroit. The high tumor response observed on mouse skin when the organic matter was applied in 12.5f concentration can be partially explained by the presence of polynuclear aromatic hydrocarbons (PAH) at tumor initiators and certain acidic components as tumor promotors. Certain polanc neutral components of. still unknown nature are indicated also to act at tumor promotors. The concentrations of PAH in various locations in Detroit and New York during different seasonal, meteorologtc and traffic conditions are compared. The relative importance of carcinogenic air pollutants in man's environment is discussed in line with epidemiological evidence. .. Authors' abst 604 Meteorology of Air Pollution. D. H. Pack. Science 146, 1119.1128 (Nov. 2*, 1964). The current status of the whole field of air pollution meteorology it summarized It it stated that the need to preserve our air resources challenges our understanding of the atmosphere s capacities. The characteristics o; point, line, and area pollutant sources are described with emphasis on the city, or the aimos: continuous strip city (the megalopolis or megapoluan area ") along the Eastern seaboarc o: tne Jr.;ted States, as an area source Also, mention is made of the ways cities modify local meteorological conditions. Vertical turbulent diffusion, horizontal turbulent diffusion, atmospneric transport, applications of air pollution meteorology, urban air pollution, and future problems are discussed. Special attention is g-.-. e- to urban meteorology, in particular to the genera, aosence over cities of surface-based temperature inversions typical of rural areas, to tne use of a nearly constant.volume balloon with a lightweight radar beacon system as a meteorological tracer: to the Weather Bureau "Air Pollution Potential Forecast" program for the United itates: and to the development o: mathematical multiple-source diffusion models for computer solution of pollution concentre:, o- problems for urban areas. - - Cond. irom Public Health Eng. Absts. 01 132 2679 24