Distribution, sources and ecological risk of trace elements and polycyclic aromatic hydrocarbons in sediments from a polluted urban river in central Bangladesh

Rahat Khan, Md. Syful Islam, A. R. M. Tareq, Kamrun Naher, Abu Reza Md. Towfiqul Islam, Md. Ahosan Habib, Md. Abu Bakar Siddique, Mohammad Amirul Islam, Sopan Das, Md. Bazlar Rashid, Asmat Ullah, M.M.H. Miah, Sayeda Ummeh Masrura, Md. Bodrud-Doza, Md. Mizanur Rahman Sarker, A. B. M. Badruzzaman