Air Pollution
Stack Testing

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The Active National Directory Of Source Emissions Testing
U.S. EPA Clean Air Excellence Award Recipient
U.S. EPA Clean Air Excellence Award Recipient
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Advanced Search Receives Prestigious
U.S. EPA Clean Air Excellence Award

U.S. EPA Clean Air Excellence Awards Presentation Ceremony
Washington D.C.

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EPA Assistant Administrator Jeffrey R. Holmstead Presents the
U.S. EPA Clean Air Excellence Award to

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Introduction is devoted to providing references for a variety of air pollution control issues. Our objective is to provide free access to air quality information to the public, and technical services and product sources to the vanguards of the air emissions control industry: stack testing consultants, facility owners, and source operators. This user-friendly site is designed for visitors to easily research EPA methods, emissions testing firms, regulatory agencies, and equipment geographically, or by using the built-in search engine. We provide hundreds of web pages to a worldwide audience 24 hours a day, 7 days a week, 365 days a year.

The Directories
From the beginning, this site has focused on browsing interactive listings rather than simply doing searches.
Company listings in the Active National Directory of Source Emissions Testing are enhanced with interactive links and contact information. Showcasing each company's unique offerings enables visitors to obtain the specific information they need to locate and contact air monitoring services, consultants, equipment and supplies online. works hard to promote the fact that small testing firms are as important to the air industry as larger corporations. Future projects are in the works which will enhance this effort.

Innovation & Uniqueness continues to add many features and weekly updates. For example, our free, online Request For Proposals service helps facility managers to obtain competitive bids from stack testing firms throughout the U.S. and Canada. Visitors' suggestions are often incorporated into new departments; e.g., engineering students now have an "Employment Opportunities" page.

Visitors to Our Site
With the site's popularity increasing, we realized that there was a real niche being filled here. Since continues to add many new features and updates every week, the directories and visitor traffic continue to grow - serving air quality professionals worldwide! See Our Site Traffic Statistics

Online Since August 2000
Since first publishing on the Internet, industry professionals easily began to find it. A large number of stack testing firms were submitted by the owners themselves. In order to maintain the quality, usefulness, and interactivity of the Directories, the addition of listing enhancements, custom web pages, website and e mail links are available for a nominal annual fee.
We are proud to provide this solid, reliable directory of source emissions testing, services and products.

"An enormous thank you to all who have participated in making the Internet's largest reference site for source
emissions testing, services and products."

is owned and operated by:
Emissions Schematics
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CK Environmental, Inc,
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IE, Inc.
CEMS, Analysers, More!

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Adwest Technologies
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CB&I Environmental & Infrastructure Inc.
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FTIR Analyzers

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TalFlo Pump Parts
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GE Energy
Stack Testing Services

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Prism Analytical Labs
Air Sample Analyses

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Buhler Analysis Systems
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"The Internet's Largest Reference Site For Source Emissions Testing, Services & Products"

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About Us - Air Pollution Stack Testing, Emissions Monitoring - is the largest stack testing reference source on the Internet and the most visited - with thousands of U.S. and international
visitors. The Active National Directory of Source Emissions Testing supports a state-by-state listing of air quality testing firms
located in the US & Canada. Industrial facility owners & managers can submit a FREE RFP and research or "shop" for stack testing
firms prior to requesting bids. Regulatory agencies & consulting engineers recommend this site & maintain contact lists. Stack
testing firms in need of equipment and services, searching for new clients or looking at the competition visit frequently.