Western San Bernardino County Western San Bernardino County AQMD - PowerPoint PPT Presentation

Western San Bernardino County Western San Bernardino County AQMD Town Hall Meeting AQMD Town Hall Meeting May 29, 2008 May 29, 2008 Philip M. Fine, Ph.D. Philip M. Fine, Ph.D. Atmospheric Measurements Manager Atmospheric Measurements Manager South Coast Air Quality Management District South Coast Air Quality Management District

Key Air Pollutants Key Air Pollutants Historic Historic • Smog (Ozone) Smog (Ozone) • • Fine Particulate (PM2.5) Fine Particulate (PM2.5) • • Air Toxics (Carcinogens) Air Toxics (Carcinogens) • Emerging Emerging • Climate Change (Greenhouse Gases) Climate Change (Greenhouse Gases) •

Hexavalent Chromium Hexavalent Chromium MATES- -III III MATES Hexavalent Chromium ng/m3 MATES II AQMD Lab data MATES III Year 1 MATES III Year 2 0.6 0.5 0.4 0.3 0.2 0.1 0.0 Anaheim Burbank Central LA Compton Fontana Huntington North Long Pico Rivera Rubidoux Wilmington Average Rubidoux Park Beach Filter Blank

California Portland Cement TXI Riverside Cement prevailing wind Western Riverside Air Monitoring Station

Initial Actions Initial Actions • Permit Records Permit Records • • Survey of Area Survey of Area • • Literature Review Literature Review • • Wind Analysis Wind Analysis • • Deposition Plates Deposition Plates •

Cal Portland TXI Riverside Cr6 Deposition Plate Results - Round 3 Highest Middle Lowest

PM samplers for Hexavalent Chromium Hexavalent Chromium Averages (ng/m3) Feb. 12 – May 25, 2008 Cal 0.35 Portland 0.28 0.31 1.58 0.09* 0.22 TXI Riverside 0.75 MATES-III Basin Average = 0.20 0.22 MATES-III Rubidoux Average = 0.39 * Less than 10 samples collected to date

Current or Planned Sampling Locations for Hexavalent Chromium in Western Riverside 11 6 S. Riverside Ave. California Portland Cement W. Agua Mansa Rd. 3 4 10 9 7 1 8 TXI Riverside Cement 2 Rubidoux Blvd. 5 AQMD Rubidoux Mission Blvd. Air Monitoring Station

Additional Actions Additional Actions • Area sweep in more than 50 square mile Area sweep in more than 50 square mile • area around cement facilities area around cement facilities • Testing of TXI cement kiln and fuels Testing of TXI cement kiln and fuels • • Top down inspections of TXI Riverside Top down inspections of TXI Riverside • and Cal Portland and Cal Portland

Bulk Material Samples Bulk Material Samples • Collected samples from both Cement Facilities Collected samples from both Cement Facilities • and Batch Plants and Batch Plants – Soil Soil – – Finished product Finished product – – Clinker storage piles Clinker storage piles – – Bag Bag- -house fall house fall- -out out – – Raw materials Raw materials – • Gray cement materials were higher in Gray cement materials were higher in • hexavalent chromium hexavalent chromium • Initially, not enough hexavalent chromium to Initially, not enough hexavalent chromium to • produce observed concentrations at sampling produce observed concentrations at sampling sites sites

Storage Piles Storage Piles Gray Clinker Gray Clinker Monitoring Monitoring Location Location

Upon Further Analysis… Upon Further Analysis… • Separated larger pieces of TXI storage pile gray clinker • Separated larger pieces of TXI storage pile gray clinker from fine dust material using a sieve from fine dust material using a sieve • Fine dust showed much • Fine dust showed much TXI Riverside Bulk Sieved higher hexavalent chromium higher hexavalent chromium samples Samples content content (<44 µm) Cr+6 Cr+6 • Fine dust is more likely to • Fine dust is more likely to Location (ppb) (ppb) Bay A surface 500 become airborne and blow become airborne and blow Bay A sub-surface 750 3980 offsite offsite Bay B surface 800 3350 Bay B sub-surface 870 • Observed concentrations at • Observed concentrations at Bay H surface 1320 6830 Bay H sub-surface 2030 sampling sites now within sampling sites now within Bay I surface 1140 2070 the range of model Bay I sub-surface the range of model 1120 Bay J surface 1670 15000 predictions predictions Bay J sub-surface 1740

Cal Portland Clinker Cal Portland Clinker • Fine dust also showed higher hexavalent Fine dust also showed higher hexavalent • chromium content than total sample chromium content than total sample • On average, hexavalent chromium On average, hexavalent chromium • content of Cal Portland clinker is about content of Cal Portland clinker is about 20% lower than TXI Riverside 20% lower than TXI Riverside • Lower dust emission potential as most Lower dust emission potential as most • clinker storage is indoors clinker storage is indoors

Fingerprinting Fingerprinting • Microscopically examined gray clinker fine dust and • Microscopically examined gray clinker fine dust and particles on the deposition plates particles on the deposition plates Deposition Plate Adjacent to Deposition Plate Adjacent to Gray Clinker Fine Dust Gray Clinker Fine Dust TXI Riverside Cement TXI Riverside Cement

More Fingerprinting More Fingerprinting • X- -Ray Diffraction Ray Diffraction • X Calcium (XRD) to (XRD) to 160000 Hydroxide calcium calcium measure measure silicates 150000 hydroxide 140000 chemical chemical 116-08 Wilson residence Distant 130000 118-08 Rubidoux Station composition and composition and Plates 120000 121-08 Plumbers Union 110000 crystal structure crystal structure 114-08 Fleetwood Near 100000 120-08 Aramark Plates Lin (Counts) • Calcium 90000 • Calcium (025) Bay J T-II clinker sub-surface 80000 Fine hydroxide a (019) Bay G Block clinker surface hydroxide a 70000 (006) Bay A T-II clinker sub-surface Clinker 60000 marker for fine marker for fine (021) Bay H T-II clinker surface Dusts 50000 (023) Bay I T-II clinker surface clinker dust clinker dust 40000 (007) Bay B T-II clinker surface (015) Bay E Scrap clinker,soil, 30000 cement surface • Found on • Found on (013) Bay E Dirt and scrap surface 20000 (001) Spillage from Kiln #1 deposition plates deposition plates 10000 LN 0807302-004 Gray cement 0 9 10 20 30 40 nearer TXI nearer TXI 2-Theta - Scale 0808109-023 - File: 0808109-023 0808109-015 - File: 0808109-015 Glass plate 121-08 - File: Glass p Glass plate 114-08 - File: Glass p 42-0551 (*) - Calcium Silic Operations: Y Scale Add 8250.00 Operations: Y Scale Add 7333.33 Operations: Y Scale Add 10500.0 Operations: Y Scale Add -45750. 04-0733 (I) - Portlandite, sy Riverside Riverside 0808109-006 - File: 0808109-006 0808109-019 - File: 0808109-019 Glass plate 116-08 - File: Glass p 0807302-004 - File: 0807302-004 33-1161 (*) - Quartz, syn - Operations: Y Scale Add 8708.33 Operations: Y Scale Add -1833.3 Operations: Y Scale Add 10000.0 Operations: Y Scale Mul 0.542 | 36-0432 (D) - Gypsum - Ca 0808109-007 - File: 0808109-007 0808109-021 - File: 0808109-021 Glass plate 118-08 - File: Glass p 0808109-025 - File: 0808109-025 Operations: Y Scale Add 9625.00 Operations: Y Scale Add 9166.66 Operations: Y Scale Add 10500.0 Operations: Y Scale Add 9500.00 0808109-013 - File: 0808109-013 0808109-001 - File: 0808109-001 Glass plate 120-08 - File: Glass p 05-0586 (I) - Calcite, syn - CaCO Operations: Y Scale Add 8250.00 Operations: Y Scale Add 6416.66 Operations: Y Scale Add 11000.0 13-0272 (N) - Calcium Magnesiu

Dust Emissions (PM10) Dust Emissions (PM10) Average PM10 from 3/26 - 4/9, 2008 80 60 State 24-hour standard ug/m3 40 20 0 W. Riverside Monitoring Adjacent to Riverside Cement Station Location

Cancer Risk Cancer Risk • Lifetime cancer risk based on 70 years of Lifetime cancer risk based on 70 years of • continuous exposure continuous exposure • Basin Basin- -wide average is ~1200 in one million wide average is ~1200 in one million • • Only 15 weeks of data collected to date Only 15 weeks of data collected to date • • Immediately adjacent to the site Immediately adjacent to the site • – 250 to 500 in one million 250 to 500 in one million – • Similar to risk next to a busy freeway, a rail yard or Similar to risk next to a busy freeway, a rail yard or • a chrome plating facility a chrome plating facility • Cancer risk calculations method under review Cancer risk calculations method under review •

Hexavalent Chromium Regulatory Levels and Monitored Levels ng/m 3 6,000 5000 5,000 4,000 3,000 2,000 1000 1,000 200 1.58 0.39 0.35 0.20 0 OSHA NIOSH CalEPA Riverside Cal West Basin Avg. Reference Cement* Portland* Riverside MATES III Exposure MATES III Level *Samples taken adjacent and downwind of cement facilities