DOI: 10.3886/icpsr06639.v1
title: Employment and Ozone Data for Industries in Urban Counties in the United States, 1977-1990
title: Version 1

description: This data collection attempts to fill the need for a better understanding of County Business Patterns (CBP), industry, and ozone levels. Parts 1-5 contain transformed CBP data over a 14-year period. Each dataset corresponds to a different industry, classified by 2-digit Standard Industrial Codes (SIC): Primary Metal Industries (SIC 33), Industrial Machinery and Equipment (SIC 35), Electronic and Other Electrical Equipment (SIC 36), Transport Equipment (SIC 37), and Instruments and Related Products (SIC 38). Data for Parts 6-8 contain hourly ozone readings for a panel of monitors within United States urban counties in July 1982 and 1987. Part 6 corresponds to monitors located in counties that were "in attainment" in both 1982 and 1987, Part 7 corresponds to monitors located in counties that were "out of attainment" or in "partial attainment" those same years, and Part 8 covers remaining monitors that recorded in both 1982 and 1987 (all were out of attainment or in partial attainment in 1982). Part 9 contains Environmental Protection Agency (EPA) data. The measures correspond to monitors measuring ground-level ozone (O3). Other variables in the file include average county wages and employment by Primary Metropolitan Statistical Area (PMSA) and county. Data for Parts 10-14 are organized as panels. Each case in the panel represents a United States urban county over an 11-year period (1977-1987), during which a specified industry had appeared at least once, according to the CBP number of establishments. The following industries are covered: Plastic Materials and Synthetics (SIC 282), Industrial Organic Chemicals (SIC 286), Petroleum Refining (SIC 291), Miscellaneous Plastic Products (SIC 307), and Blast Furnaces and Basic Steel Products (SIC 331).
description: Datasets: 
 
 DS0: Study-Level Files 
 DS1: Transformed CBP File for Primary Metal Industries 
 DS2: Transformed CBP File for Industrial Machinery Equipment 
 DS3: Transformed CBP File for Electronic and Other Electrical Equipment 
 DS4: Transformed CBP File for Transport Equipment 
 DS5: Transformed CBP File for Instruments and Related Products 
 DS6: Hourly Ozone Readings for Monitors in Attainment (1982 and 1987) 
 DS7: Hourly Ozone Readings for Monitors Out of Attainment or in Partial Attainment (1982 and 1987) 
 DS8: Hourly Ozone Readings for Remaining Monitors (1982 and 1987) 
 DS9: Summary EPA Data 
 DS10: CBP Data for Plastics Materials and Synthetics 
 DS11: CBP Data for Industrial Organic Chemicals 
 DS12: CBP Data for Petroleum Refining 
 DS13: CBP Data for Miscellaneous Plastic Products 
 DS14: CBP Data for Blast Furnaces and Basic Steel Products
description: (1) The data files are in ASCII format with STATA data definitions. The STATA data definition statements for all parts are in the codebook. STATA data definition statements for Parts 6-14 are also in the individual data files. An example of how to read Parts 6-14 into SPSS is provided in the codebook. Users should also consult the codebook for computation clarifications. (2) Some data files contain quotation marks, and missing observations are coded with a period (".") in some data files. (3) The variable label for variable mws285, contained in Part 9, is not available. (4) Northern Illinois State University produced the transformed CBP data in Parts 1-5. (5) The codebook is provided as a Portable Document Format (PDF) file. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided through the ICPSR Website on the Internet. The codebook is also available in hardcopy form upon request from ICPSR.