This document contains the presentation by D. V. Borole, NIO Goa, on dynamics of trace gases at low level planetary boundary layer observed at Cabo de Rama, west coast of India,
presented at National climate research conference, IIT Delhi, March 5-6, 2010.

Concentrations of carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), nitrous oxide (N2O) and hydrogen (H2), and the stable carbon (? 13C