{"action":"create","ckan_id":null,"date_created":"Wed, 03 Sep 2025 20:59:09 GMT","date_finished":null,"harvest_job_id":"22b5b228-5c22-478f-beac-c2ad93490783","harvest_source_id":"8e0c0837-e26e-432c-bb3b-dd0df4f1b9af","id":"6249d320-0080-4efa-bda9-a836b68a8f7a","identifier":"https://data.cdc.gov/api/views/b6fe-yq88","parent_identifier":null,"source_hash":"09c85810e9bc28f7dec012d7211472e0408b2fc70e614ea590d4f95c549ea439","source_raw":"{\"@type\": \"dcat:Dataset\", \"accessLevel\": \"public\", \"bureauCode\": [\"009:20\"], \"contactPoint\": {\"@type\": \"vcard:Contact\", \"fn\": \"Health Effects Laboratory Division, Chemical and Biological Monitoring Branch\", \"hasEmail\": \"mailto:sa-cin-webteam@cdc.gov\"}, \"description\": \"A method for measuring PAA vapors in air using impinger sampling and field-portable colorimetric analysis is presented. The capture efficiency of aqueous media in glass and plastic impingers was evaluated when used for PAA vapor sampling. Measurement of PAA was done using a N,N-diethyl-p-phenylenediamine (DPD) colorimetric method with a field portable spectrometer. The linearity of the DPD method was determined for PAA both in-solution and captured from vapor phase using glass or plastic impingers. The Limit of Detection (LOD) for the glass and plastic impinger (0.24 mg/m3 (0.077 mg/L) and 0.28 mg/m3 (0.091 mg/L)), respectively, and Limit of Quantitation (LOQ) (0.79 mg/m3 (0.25 mg/L) and 0.92 mg/m3 (0.30 mg/L) for the glass and plastic impingers, respectively, are below the threshold limit value (TLV) short term exposure limit (STEL) of 1.24 mg/m3 (0.4 ppm) over a 15 minute period. This impinger method allows for a low cost, easy to use, and rapid in-field measurement for occupational exposure to PAA.\", \"distribution\": [{\"@type\": \"dcat:Distribution\", \"downloadURL\": \"https://data.cdc.gov/download/b6fe-yq88/application/x-zip-compressed\", \"mediaType\": \"application/x-zip-compressed\"}], \"identifier\": \"https://data.cdc.gov/api/views/b6fe-yq88\", \"issued\": \"2024-11-15\", \"landingPage\": \"https://data.cdc.gov/d/b6fe-yq88\", \"license\": \"http://opendefinition.org/licenses/odc-odbl/\", \"modified\": \"2024-11-20\", \"programCode\": [\"009:034\"], \"publisher\": {\"@type\": \"org:Organization\", \"name\": \"Centers for Disease Control and Prevention\"}, \"theme\": [\"National Institute for Occupational Safety and Health\"], \"title\": \"A Field-Portable Colorimetric Method for the Measurement of Peracetic Acid Vapors: A Comparison of Glass and Plastic Impingers\"}","source_transform":null,"status":"error"}