Introduction

Air Chemistry, also known as Atmospheric Chemistry, is a critical field of study that focuses on the chemical composition and processes occurring in the Earth's atmosphere. This explores the diverse components of air, including gases, particles, ions, and radicals, and their chemical speciation. Key topics include the formation and transformation of particulate matter, photochemical reactions that drive atmospheric processes, and the chemistry of various air pollutants. Additionally, the study of greenhouse gases and their impact on global warming is essential for understanding the broader implications of air chemistry on climate change and environmental health.

Objectives

After going through this unit you will be able to:

1. know about atmospheric chemistry which includes Composition of air;

2. explain chemical speciation and ions and radicals;

3. understand photochemical reactions in the atmosphere;

4. describe the phenomenon of photochemical smog, acid rain;

5. and global warming.