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All posts in “Air Quality Compliance”

By Air Sciences Inc.

Baghouse PM10 Testing Frequency Calculator
(for Nevada)

This workbook calculates the frequency for how often a baghouse needs to be tested for PM10 using the Nevada Division of Environmental Protection – Bureau of Air Pollution Control Testing Determination System (TDS). The TDS will be applied during all permit renewals and any revisions that include a baghouse.  At this time, the TDS only applies to baghouses used to control non-combustion sources. 

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Gold Ore Processing and Production Facilities Permitting

In 2011, the United States Environmental Protection Agency (EPA) promulgated National Emissions Standards for Hazardous Air Pollutants (NESHAP) for gold ore processing and production facilities. This rule is set forth in Volume 40 of the Code of Federal Regulations (CFR) Part 63 Subpart EEEEEEE (40 CFR 63 Subpart EEEEEEE). These  gold ore processing and production facilities are required to  obtain a federal permit under 40 CFR part 70 or 40 CFR part 71 (Title V operating permit), even if they are not associated with a major source. 

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Reducing Mercury, Lending Expertise

For centuries, humans used mercury to extract gold or silver. Incredibly dangerous if inhaled directly, mercury also poses an environmental burden when it is released into the atmosphere or ends up in water. Mercury release can have natural (from volcanoes and forest fires) or man-made (anthropogenic) origins (power plants and manufacturing). One anthropogenic source linked to Air Sciences’ work is gold mining in Nevada.

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  • Tailings ponds evaporation: in situ vs theoretical calculations
  • Surfaces impacted by water, not wind, are greater potential sources for dust at Keeler Dunes

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AIR SCIENCES

Air Sciences is a team of scientists and engineers dedicated to finding the right solutions for our clients.

We specialize in air quality services including dispersion modeling, permitting, compliance, monitoring, data management, and fire science.

Air Sciences is a certified SBE (Proprietary) company with the City of Los Angeles.

LA BAVN ID: 26433
SBE Certification No.: SBEProp264
Certifying Entity: City of Los Angeles
NAICS Code: 54120 - Environmental Consulting Services

air@airsci.com

Latest News

  • 2022 PNWIS Conference

    PNWIS 2022, Katie (left) and Lyndsey (right) enjoy some socializing with colleagues against a stunning backdrop #nofilter

  • Tailings ponds evaporation: in situ vs theoretical calculations

    Large man-made bodies of water at mining sites such as tailings ponds are designed for water to evaporate. Exposure to the greatest tool for evaporation – the sun – means water level changes require […]

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