Version History **22118 - Release on 4/28/2022** - RAST includes the new HRACalc processor (dated 22118). A correction was made to the pig and chicken pathways related to address the transcription errors from the previous update. - Fixed issues with the Tier 2 intake screens not displaying the transcription changes. Note: Existing HARP projects will still display the old intake rates under the Tier 2 options on the "Beef & Dairy", "Pig, Chicken, Egg", and "Homegrown Produce" pathway screens.  If you would like to view the new intake rates, you must hit the reset button next to the Tier 2 checkbox. **22094 - Released on 4/22/2022** - RAST includes the new HRACalc processor (dated 22094). The HRACalc is the processor that calculates risk. HRACalc has been updated to address transcription errors in the Air Toxics Hot Spots Risk Assessment Guidelines. For more information, please see the Notice of Adoption of Air Toxics Hot Spots Program Guidance Manual for the Preparation of Health Risk Assessments 2015 (https://oehha.ca.gov/air/crnr/notice-adoption-air-toxics-hot-spots-program-guidance-manual-preparation-health-risk-0) and Notice of Adoption of Technical Support Document for Exposure Assessment And Stochastic Analysis Aug 2012 (https://oehha.ca.gov/air/crnr/notice-adoption-technical-support-document-exposure-assessment-and-stochastic-analysis-aug). - Hyperlink to the health table version history has been updated. **21081 - March 23, 2021** - RAST has been updated to target a newer version of the Microsoft .Net Framework (version 4.7.2). This update fixes the connection issue to check for HARP updates. The HRACalc has also been updated to use the newer framework. **19044 - February 13, 2019** - Fixed an issue with exporting health database information to a CSV file from the View Health Table window. - New option to turn on or off the molecular weight adjustment factor (MWAF) in the "Select Risk Scenario" screen. The MWAF option is on by default. - The latest health database (v18232) is now included in the RAST installation package. - ADMRT includes the new HRACalc processor (dated 19044). The HRACalc is the processor that calculates risk. An issue was identified with the egg pathway. The risk from the egg pathway errored if the egg parameters were not entered properly. **18159 - June 8, 2018** - Fixed an issue with exporting data from the health database. - The latest health database (v18121) is now included in the RAST installation package. **17320 - November 16, 2017** - Added an option to select South Coast Air Quality Management District (AQMD) mandatory minimum pathways. - Added a Bay Area AQMD health table option. This option can be found under Health Values\Settings from the Enter Pollutant Concentration screen. Please contact Bay Area AQMD for information on the use of the health table. **17052 (repackaged with the new health database) - February 21, 2017** - The new Reference Exposure Levels for carbonyl sulfide (463-58-1) were added to the health database. For more information, please visit http://oehha.ca.gov/air/hot_spots/. - The new unit risk factor for perchloroethylene (127-18-4) was updated in the health database. The unit risk factor is for prioritization calculations and is not used in cancer risk calculations. For more information, please visit http://oehha.ca.gov/air/hot_spots/. **17023 - January 23, 2017** - Fixed an issue with selecting a user-defined health database. - Fixed an issue with selecting inhalation only pathway for a worker scenario. - Fixed an issue with handling pollutants not contained in the health database. - Added ability view, search, and export health database. - RAST includes the new HRACalc processor (dated 17023). The HRACalc is the processor that calculates risk. - Added additional information to the risk result files - The "Scenario" column includes information about which pathways were ran; if FAH option was applied; and if user-defined values were supplied. - The title header includes the file path and name of the input file. ***There are no changes to the risk equations or HRA input file*** **16057 (repackaged with health database and HRACalc.exe) - March 28, 2016** - RAST includes the new HRACalc processor (dated 16088). The HRACalc is the processor that calculates risk. The version number of the HRA input file may be misread. The HRA input file may have to be recreated on older projects. - Health table as been updated (dated 16088). The new Reference Exposure Levels for toluene diisocyanate isomers and methylene diphenyl diisocyanate recently adopted by the Office of Environmental Health Hazard Assessment are included in the new health database. For more information, please visit http://oehha.ca.gov/air/hot_spots/. **16057 - February 26, 2016** - Fixed issue with selecting user-defined site parameters the first time. - RAST includes the new HRACalc processor (dated 16057). The HRACalc is the processor that calculates risk. It was reconfigured for batch processing for calculating risk by source. This feature is only availabe in the ADMRT. - General text changes. - Health table as been updated (dated 16057). 27 pollutants health values have been removed from the health database. OEHHA has determined these values do not apply to the Hot Spots Program. Most of the pollutants are pesticides. The health values have been removed for the following pollutants: PolID Pollutant Name 78875 1,2-Dichloropropane 122667 1,2-Diphenylhydrazine {Hydrazobenzene} 542756 1,3-Dichloropropene 53963 2-Acetylaminofluorene 92671 4-Aminobiphenyl 61825 Amitrole 57578 beta-Propiolactone 2425061 Captafol 133062 Captan 57749 Chlordane 510156 Chlorobenzilate 107302 Chloromethyl methyl ether (technical grade) 1066 Coke oven emissions 72559 Dichlorodiphenyldichloroethylene {DDE} 62737 Dichlorovos {DDVP} 79447 Dimethyl carbamoyl chloride 151564 Ethyleneimine {Aziridine} 76448 Heptachlor 67721 Hexachloroethane 139139 Nitrilotriacetic acid 1116547 N-Nitrosodiethanolamine 684935 N-Nitroso-N-methylurea 90040 o-Anisidine 95534 o-Toluidine 50555 Reserpine 62566 Thiourea 8001352 Toxaphene **15197 - July 16, 2015** - Fixed an issue when exporting the risk results to a CSV file. - RAST includes the new HRACalc processor (dated 15197). The HRACalc is the processor that calculates risk. Changes to the HRACalc process (dated 15197) - Fixed risk breakdown column order associated with the new report cancer risk report by receptor. Several risk results did not match up with the column names. The file is only utilized by the ADMRT (date 15180 or later). **June 29, 2015** - RAST (15077) was repackaged with the new HRACalc processor (dated 15180). The HRACalc is the processor that calculates risk. Changes to the HRACalc processor(dated 15180) - Fixed exposure duration distribution error when using some exposure duration ranges under a Tier 2 scenario. - Fixed memory limit error when running a large number of sources, receptors, and pollutants associated with running the ADMRT. To address this, the program is now setup to outputs both a file containing the risk breakdown by pollutant and receptors and a file containing the total risk by receptors. The new file is only utilized by the ADMRT (dated 15180). **15076 - March 17, 2015** - The feature to check for updates has been adjusted to allow the RAST and the ADMRT to be independently updated. - The new Reference Exposure Levels for benzene that were part of the last installation package were not updated properly. The setup and deployment package did not update all the files. The previous version of HARP should be uninstalled first and the PRStartup.ini should be deleted from the HARP2 folder before installing the latest version. - The setup and deployment package has been fixed to resolve issue with updating the software. **15071 - March 12, 2015** - It was discovered the new Reference Exposure Levels for benzene were inadvertently left out of the initial release. In addition, the update feature that would typically handle health value updates was pointing to the wrong server in the Risk Assessment Standalone Tool and the Air Dispersion Modeling and Risk Tool. **15065 - March 6, 2015** - Initial release