Daily Emission Patterns of Coal-Fired Power Plants in China Based on Multisource Data Fusion.

ABSTRACT: Daily emission estimates are essential for tracking the dynamic changes in emission sources. In this work, we estimate daily emissions of coal-fired power plants in China during 2017-2020 by combining information from the unit-based China coal-fired Power plant Emissions Database (CPED) and real-time measurements from continuous emission monitoring systems (CEMS). We develop a step-by-step method to screen outliers and impute missing values for data from CEMS. Then, plant-level daily profiles of flue gas volume and emissions obtained from CEMS are coupled with annual emissions from CPED to derive daily emissions. Reasonable agreement is found between emission variations and available statistics (i.e., monthly power generation and daily coal consumption). Daily power emissions are in the ra

SUBMITTER: Wu N 

PROVIDER: S-EPMC10125283 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature