Tag: CEMS

What is a Continuous Emission Monitoring System (CEMS)?

A Continuous Emission Monitoring System (CEMS) is the total equipment necessary for the determination of a gas or particulate matter concentration or emission rate using pollutant analyzer measurements and a conversion equation, graph, or a computer program to produce results in units of the applicable emission limitation or standard.

CEMS are required under some of the EPA regulations for either continual compliance determinations or determination of exceedances of the standards. The individual subparts of the EPA rules specify the reference methods that are used to substantiate the accuracy and precision of the CEMS.

Quality assurance procedures in Appendix F to 40 CFR 60 are used to evaluate the effectiveness of quality control (QC) and quality assurance (QA) procedures and the quality of data produced.

Continuous Emissions Monitoring 101: Extractive CEMS Flow Overview

Read this article to learn more about extractive CEMS flow processes, steps, and components from industry experts.

CEMS Probes, Flow Probes & Opacity Units: How To Locate

In this article, read about where you can locate your plant’s CEMS Probes, Flow Probes & Opacity Units on your stack unit & what EPA regulations apply to them.

QAQC Manuals: What You Need to Know

In this article, we will outline requirements and discuss the elements a good QAQC Manual typically includes.

Resubmitting Data to ECMPS

While resubmitting data can seem intimidating, it does happen from time to time. This article covers helpful tips for such a process.

Continuous Emission Monitoring System: Upgrade or Replace?

Are you upgrading or replacing a Continuous Emission Monitoring System? Read more to learn which one is right for your facility so your CEM System is up to date with the latest technology.

Keep Your QAQC Plans Up-to-Date to Keep Your Facility Safe (and Audit-Ready)

Learn more about why it is important to keep your facility’s QAQC plan up-to-date, both for facility safety and audit preparedness.

New Release: RATAView™ Version 1.2 Now Available

RATAView Version 1.2 release offers new features and enhancements to help stack testers’ perform RATA tests accurately and efficiently.

New Release: Prism Version 1.6 Data Acquisition System

The Prism data acquisition system (DAS) Version 1.6 release provides new features designed to make CEMS compliance and monitoring easier and more productive than ever.

Increasing Demand for Ethanol Affects Your Monitoring Systems

Read about how the increasing demand for ethanol can affect your continuous emissions monitoring system components at your ethanol facility.

Update on 40 CFR 63 Subpart YYYY – Formaldehyde Emission Standards

This blog post discusses updates on 40 CFR 63 Subpart YYYY including changes, who is subject to YYYY, facility limits and more. Compliance with changes is required within 180 days of March 9, 2022 (i.e., September 6, 2022).

What the April 2022 Cross State Air Pollution Rule Federal Implementation Plan Means

Recent changes have been proposed by the Environmental Protection Agency (EPA) regarding the CSAPR Federal Implementation Plan. These proposed changes would have significant impact on industrial plants.

An Inside Look at Ethanol Regulations in the CEMS World

The 2007 EPA 40 CFR Part 60 permits’ rule about chemical process plants changed ethanol regulations for CEMS. After 15 years since this rule change, it could be time to update your ethanol plant’s emission monitoring system and possibly look for a DAS that helps comply with 40 CFR Part 60 regulations.