Naval Power and Force Projection

Summer 2017

Military magazines in the United States and Canada, covering Armor and Mobility, focuses on tactical vehicles, C4ISR, Special Operations Forces, latest soldier equipment, shelters, and key DoD programs

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Page 19 of 35

Pressure from California air quality districts is mounting as local residents are increasingly voicing concerns over the chemicals exhausted into the air. Of particular concern is hexavalent chromium – a known carcinogen and pollutant associated with plating and anodizing processes. Metal Processing Facilities in the area have already employed chemical technologies such as surface tension modifiers (defoamers) to reduce the hexavalent chromium discharge from their chromic acid anodize tanks. 1 In other instances, chrome fume scrubbers have been employed at great cost. Reduction of Hexavalent Chromium Emissions is Southern California's Top Priority South Coast Air Quality Management District (SCAQMD), the air pollution control agency for Orange County and major portions of Los Angeles, San Bernardino and Riverside counties, requires emissions in certain high impact areas to be less than 1 ng/cubic meter in the air outside the plating facilities so that local residents are not endangered. Cancer risk due to the elevated hexavalent chrome levels is estimated to be more than double that expected from background sources. 2 Identification and reduction of above-background levels of hexavalent chromium is SCAQMD's main focus: "This is priority No. 1 for our air monitoring and enforcement staff," said Wayne Nastri, acting executive officer for the South Coast Air Quality Management District" 3 The concerns raised in California by SCAQMD surrounding hexavalent chrome use as an anodic seal is expected to continue across the United States and globally. In Europe, the need to halt the use of hexavalent chromium was recognized as early as 2001 4 and resulted in the REACH initiative banning the use of hexavalent chrome beginning September 21, 2017. 5 Compliance and Enforcement are Difficult, Expensive To enforce the requirement, fence line monitors have been placed at certain facilities, and when the concentration of hexavalent chromium rises above the threshold limit, the plater is required to shut down the chrome generating processes. 6 7 Not only does this affect the local residents, it also affects the local manufacturers who supply jobs to the area. According to local plating shop owners each installation may reach into the millions of dollars. 8 Many places will simply close and employees will be out of work: "The South Coast Air Quality Management District has found that the sodium dichromate seal is a significant uncontrolled source of hexavalent chromium emissions. They have shown it to be a priority as they modify the current chrome emission rules. As the MFASC meets with the South Coast AQMD, it has become clear that the state Air Resources Board is also listening. The coming change in regional and then California rules is likely to cost shops significant dollars to comply, forcing many shops to relocate out of INNOVATIVE SEAL FOR ANODIZED ALUMINUM ELIMINATES HEXAVALENT CHROME EMISSIONS CHEMEON TCP-HF Provides Safe Alternative to Carcinogenic Materials Used on Naval Aircraft BY DR. SJON WESTRE & BYRON ESTES F/A-18 Flown by Strike Fighter Squadron 125 (VFA-125) the "Rough Raiders" - the United States Navy's first F/A-18 Squadron. (CHEMEON INDUSTRY PARTNER 18 | NP&FP and DoD P&E | Summer 2017

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