Spatial and Seasonal Patterns and Temporal Variability of Haze and its Constituents in the United States Report VI: June 2023 – Improve

Spatial and Seasonal Patterns and Temporal Variability of Haze and its Constituents in the United States Report VI: June 2023

IMPROVE Report

Entire Document (PDF) Chapters only (no appendices)
Cover-dedication-title-TOC
Executive Summary
Chapter 1 – Interagency Monitoring of Protected Visual Environments (IMPROVE) Network: Configuration and Measurements
Chapter 2 – Spatial Patterns of Speciated PM2.5 Aerosol Mass Concentrations
Chapter 3 – Seasonal Distributions of PM2.5 Aerosol Mass
Chapter 4 – Reconstructed Aerosol Light Extinction Coefficients
Chapter 5 – Seasonal Distribution of Reconstructed Aerosol Light Extinction Coefficients
Chapter 6 – Trends in IMPROVE Speciated Aerosol Concentrations
Chapter 7 – Trends in IMPROVE Reconstructed Light Extinction Coefficients
Chapter 8 – IMPROVE Bibliography 2010 to Present
Appendix 1.1 –A New Cost-Effective Analytical Method for IMPROVE: Nondestructive Infrared Analysis of PTFE Filters to Measure Organic, Elemental, and Total Carbon, Inorganic Ions, Soil Elements, Organic Matter (OM), and Organic Functional Groups
Appendix 1.2 – Documentation of Changes in Analytical Methods and Data Processing Due to the Chemical Speciation Network (CSN) Contractor Changes in 2015
Appendix 2.1– Monthly Varying Organic Carbon to Mass Ratio
Appendix 2.2-2.3 – 2016–2019 IMPROVE and CSN Annual Mean Mass Concentrations and Mass Fractions
Appendix 3.1-3.2 – 2016–2019 IMPROVE and CSN Regional, Monthly Mean Mass Concentrations and Mass Fractions
Appendix 4.1-4.2 – IMPROVE and CSN Monthly Humidification Factors (f(RH))
Appendix 4.3-4.4 – IMPROVE and CSN Annual Mean Light Extinction Coefficients and Extinction Fractions
Appendix 5.1-5.2 – 2016–2019 IMPROVE and CSN Regional, Monthly Mean Light Extinction Coefficients and Fractions
Appendix 6.1-6.3 – IMPROVE Short- and Long-term Annual Mean and Percentile Mass Trends
Appendix 7.1-7.3 – IMPROVE Short- and Long-term Annual Mean and Percentile Light Extinction Coefficient Trends
Appendix 8 – Regional Haze Rule Metrics

Data (excel files)