Volume 12 Number 4 (Apr. 2021)

Article#	Type	Article Title & Authors ( Volume 12 Number 4 (Apr. 2021))	Page
1325	Article	New Normal Role in PM2.5 Reduction in Bangkok Sopa Chinwetkitvanich, Thawat Ngamsritrakul, and Sirima Panyametheekul	100
1326	Article	Comparative Study between Membrane Bioreactor MBR and Rotating Biological Contactors RBC for Greywater Treatment Amr M. Abdelkader	107
1327	Article	Fe(III)-Aqua Complex Mediated Photodegradation of Methylene Blue Dye Ashfeen Nawar, Md. Ataur Rahman, and Md. Mufazzal Hossain	112
1328	Article	The Level of Threats and Community Capacity Concerning to Landslide Emergency in Banjarnegara Indonesia Erni Suharini, Fakhfiyani Arfina, and Edi Kurniawan	118
1329	Article	Evaluation of Boosted Regression Tree for the Prediction of the Maximum 24-Hour Concentration of Particulate Matter Wan Nur Shaziayani, Ahmad Zia Ul-Saufie, Syarifah Adilah Mohamed Yusoff, Hasfazilah Ahmat, and Zuraira Libasin	126

International Journal of Environmental Science and Development