**Meet the editor**

Dr Hayder Abdul-Razzak is a professor of mechanical engineering at Texas A&M University-Kingsville. He has over 25 years of experience with a Ph.D. from the Illinois Institute of Technology. An expert in atmospheric chemistry and physics, he is proficient in the design, analysis, and modeling of fluid and thermal systems. Dr Razzak has published numerous research projects in

refereed journals. For the past twenty years, Dr Razzak has been involved with a research project supported by NASA and DOE to investigate the impact of aerosols on the atmosphere, in collaboration with Pacific Northwest Laboratory. His treatment of aerosol activation has been selected for incorporation into the Community Climate System Model and many other regional and global climate models.

Contents

**Preface IX** 

Inna Plakhina

**Section 1 Aerosols Regional Characteristics 1** 

**in 1976–2010 Years 3** 

Chapter 2 **Temporal Variation of Particle Size** 

**in Bangkok, Thailand 29** 

Chapter 4 **Natural vs Anthropogenic Background** 

Sanat Kumar Das

and Patrick Eriksson

and Tassanee Prueksasit

Chapter 1 **Variations in the Aerosol Optical Depth** 

**Abovethe Russia from the Data Obtained at the Russian Actinometric Network** 

**at Different Roadside Air Environments** 

Chapter 3 **Aerosol Characteristics over the Indo-Gangetic Basin: Implications to Regional Climate 47**  A.K. Srivastava, Sagnik Dey and S.N. Tripathi

> **Aerosol Contribution to the Radiation Budget over Indian Thar Desert 81**

Chapter 5 **Distribution of Particulates in the Tropical UTLS** 

Chapter 6 **Changes of Permanent Lake Surfaces, and Their** 

**over the Asian Summer Monsoon Region and Its Association with Atmospheric Dynamics 113**  S.V. Sunilkumar, K. Parameswaran and Bijoy V. Thampi

**Consequences for Dust Aerosols and Air Quality: The Hamoun Lakes of the Sistan Area, Iran 163**  Alireza Rashki, Dimitris Kaskaoutis, C.J.deW. Rautenbach

**Distribution of Polycyclic Aromatic Hydrocarbons** 

Tomomi Hoshiko, Kazuo Yamamoto, Fumiyuki Nakajima
