Sarah Benki-Nugent from the University of Washington paid a courtesy call to the Chairman, Department of Chemistry, Faculty of Science and Technology, University of Nairobi. This was during her Visit to the Atmospheric Deposition Network Laboratory where one of our MSc student Mr. Vincent Kipter who is undertaking a project titled “Assessment of Air Pollution and Health Effects in Densely Populated Communities in Nairobi County, Kenya” under the Supervision of Dr. Faridah Hussein Were.