Under the Pollution Prevention Act of 1990 (PPA), TRI collects information to track industry progress in reducing waste generation and moving towards safer waste management alternatives. Measures that facilities have taken to prevent pollution and reduce the amount of toxic chemicals entering the environment are shown in the table below. Although factors other than these reported practices contribute to year-to-year changes in releases, results are sorted by largest reduction in order to facilitate identification of pollution prevention successes. View the to learn about this report's features.

List of Facilities in TRI submitting Pollution Prevention Information for Selected Criteria:

Year: between 2016 and 2024

P2 Text Filters: Only show information about source reduction activities Show information about source reduction AND other environmental practices Exclude facilities that reported activity codes but no text descriptions Show information on barriers to implementing source reduction activities Show ALL information reported in pollution prevention data fields Year-to-Year Comparison: Total Waste Total Release [displayed currently] Air Release Land Release Water Release

TRI Facility ID	Facility Name	Address	Chemical Name	Industry	Year	Prior Year Release *	Current Year Release *	Percent Change	Pollution Prevention Information (Activity Codes/Text/[Reduction])	P2 Report	P2 Report URL
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Mercury	325180: Other Basic Inorganic Chemical Manufacturing	2022	.0001	0	-100	Other Environmental Practices: Recycling - The mercury used on site is recovered by filtering during the process and then sent off site to be cleaned and returned to the site for reuse.		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=0007439976&ReportingYear=2022&DocCtrlNum=1322221368451&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Vanadium compounds	325180: Other Basic Inorganic Chemical Manufacturing	2023	30,328.57	3,246.17	-89.3	Source Reduction: S21: Optimized process conditions to increase efficiency[-15-24%]		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=N770&ReportingYear=2023&DocCtrlNum=1323222275846&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Mercury	325180: Other Basic Inorganic Chemical Manufacturing	2023	0	0	0	Other Environmental Practices: Recycling - The waste mercury is sent off to Bethlehem, PA, for recyclingand recovery.		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=0007439976&ReportingYear=2023&DocCtrlNum=1323222275784&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Vanadium (except when contained in an alloy)	325180: Other Basic Inorganic Chemical Manufacturing	2024	61,804.25	86,403.04	39.8	Source Reduction: S21: Optimized process conditions to increase efficiency		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=0007440622&ReportingYear=2024&DocCtrlNum=1324223203819&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Cobalt compounds	325180: Other Basic Inorganic Chemical Manufacturing	2024	21,797.05	37,290.20	71.08	Source Reduction: S21: Optimized process conditions to increase efficiency - Concentrating on right-first time and improving on process equipment. Source Reduction: Concentrating on right-first time and improving on process equipment.		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=N096&ReportingYear=2024&DocCtrlNum=1324223203504&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Molybdenum trioxide	325180: Other Basic Inorganic Chemical Manufacturing	2024	124,722.35	224,808.30	80.25	Source Reduction: S21: Optimized process conditions to increase efficiency - Improved mechanical reliability. Methods to Identify SR Opportunities: T01 : INTERNAL POLLUTION PREVENTION OPPORTUNITY AUDIT(S) - P2 plan to reduce process scrap. Source Reduction: Improved mechanical reliability.		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=0001313275&ReportingYear=2024&DocCtrlNum=1324223203821&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Molybdenum trioxide	325180: Other Basic Inorganic Chemical Manufacturing	2023	47,876.49	124,722.35	160.51	Source Reduction: S44: Other improvements to operating practices and training[-15-24%] - Training to reduce process scrap and right first time. Source Reduction: Training to reduce process scrap and right first time.		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=0001313275&ReportingYear=2023&DocCtrlNum=1323222275796&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Nickel compounds	325180: Other Basic Inorganic Chemical Manufacturing	2023	4,865.30	19,193.39	294.5	Source Reduction: S25: Other process modifications made[-15-24%]		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=N495&ReportingYear=2023&DocCtrlNum=1323222275808&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Vanadium (except when contained in an alloy)	325180: Other Basic Inorganic Chemical Manufacturing	2023	11,838.53	61,804.25	422.06	Source Reduction: S21: Optimized process conditions to increase efficiency[-15-24%]		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=0007440622&ReportingYear=2023&DocCtrlNum=1323222275834&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Vanadium compounds	325180: Other Basic Inorganic Chemical Manufacturing	2024	3,246.17	33,729.40	939.05	Source Reduction: S31: Instituted better labeling, testing, or other inventory management practices[-15-24%]		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=N770&ReportingYear=2024&DocCtrlNum=1324223203807&Opt=0
77507HLDRT10010	HALDOR TOPSOE INC (HALDOR TOPSOE/ AS)	10010 BAYPORT RD, PASADENA, TX 77507	Nitric acid	325180: Other Basic Inorganic Chemical Manufacturing	2024	0	633.00		Other Environmental Practices: Treated by NOx SCR.		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=77507HLDRT10010&ChemicalId=0007697372&ReportingYear=2024&DocCtrlNum=1324223203795&Opt=0