Document 7RZ8G7ERgXaXJbDdeQdgjkZV

propos, or gmA PROGRAM POR ;W3&mmmmmmmmmmmm mmmm mmsmm.a> mmi Because of the great distance between Los Angeles and the Kettering Laboratory the program described in this proposal Is designed so that the portion which relates to sampling will be carried out by competent personnel residing in the Los Angeles area*. The samples will then be shipped to Cincinnati for analysis* The choice of methods and equipment and the selection and instruction of personnel will be the responsibility of the Laboratory,. The investigation has been designed so that the diurnal variations in the lead content of the air can be shown along with the dally average concentration of a number of other materials which may be present in the suspended matter* Part 1. Two A .1.3.2. Automatic Smoke Samplers are to be employed to collect air-borne dust at two stations, continuously, for a period of one hundred days. The samplers will be operated so that information can be obtained for periods of either 1 or 2 hours duration during the 84 hour sampling periods. The spots which will be obtained (2400 or 4800} will b evaluated as Coh units by measuring the reduction of the transmission of light through the spots. (Hemeon, V.Q.L* Haines 0* F. *Tr and Xde H* IS.l Determination of Ease and Smoke Concentrations by Filter Paper Samplers Air Bepair, August 1954.) The Coh values will give * It is believed tiiat these eervices can be obtained without coat to the Kettering Laboratory or to the Foundation as a contribution of technical personnel of Ethyl Corporation in the Los Angeles area. Should this turn out not to be feasible, additional expenditures for this purpose may be required. KiT 0003242 2 an Index of cleanliness (or pollution) vhich vill be comparative for the various stations of the community. Tve1ve-hundred of the total number of spots vill then be cut from the paper tapes and analyzed for their content of lead. Results vill he recorded as alcrograas of lead per cubic meter of air. The spots to be . analyzed vill be selected to correlate vlth veather conditions and other pertinent factors Although spots representing periods of collection of 1 hour duration vill give a more continuous record of the variation of the lead content of the air# the analytical accuracy vould be better vith a larger sample such as vould be provided vith a spot corresponding to a tvo hour sampling period. The volumes of air samples vould be 0.42 M3 in 1 hour and 0.84 M3 in 2. It is recommended that the period of collection be 2 hours. Part 2. At the same time and at the same stations at vhich the A.I.S.I. samplers are set up, there vill be collected suspended matter from the air for periods of 24-hours (or tvo 12 hour samples) by means of tvo high volume samplers. The collecting media vill be specially fired, filler-free, glass fibre filter vebs. The dust collected on 200 filters vill be analysed as comprehensively as possible in order to determine the quantities of particulate matter per cubic meter of air, the concentrations of certain elements like arsenic, lead, beryllium, copper, vanadium, etc., the total quantity of organic matter, and a num ber o f anionic constituents such as sulfate, nitrate, fluoride and chloride Some samples vill be pooled in order to determine the average quantity of 5,4 benzpyrene 0003243 ~ 2 Coat of^ ?roHSS ?art 4 Purchase of 2 A.I .S .1. automatic sashlers and the analysis of 1200 spots for lead****..............*#.110,000 Part 2. Comprehensive analysis of 200 filter samples plus purchase of equipment................................. 15,500 For collecting samples, tabulating data, writing of reports, travel, shipping of samples, utility service, etc (100 day b a s i s , 5* 000 Total cost of project $30,500 It is believed, that if prompt action is taken on this proposal, the necessary equipment can be obtained in time to commence the program not latter than August 15, 195^ The selection of personnel may be more difficult, but it is believed that this matter can also be arranged promptly. This program is sufficiently flexible so that changes can be made in it as the data accumulate for review. Any changes made will be subject to agreement between members of the Laboratory and the Foundation. The estimated cost of the project is the maximum if the program as outlined Is carried to completion. Increases or reductions in cost of the work, in accordance with alterations agreed upon, will be based primarily on the numbers of samples to be analyzed, at the rate of $7* 50 per analysis for $75samples collected under Fart 1 and per sample under Part 2. Expenditures for equipment or for services not contemplated in the present proposal, will, of course, be added. From the Kettering Laboratory in the Department of Preventive Medicine and Industrial Health, College of Medicine, University of Cincinnati, Cincinnati, Ohio hater July 1, 1954 Submitted b y 8 0003244