• Idris Baba Mai Garba
• Babagana Sulyman Babagimba
• Aisha Suleman Adakwaki

Abstract: This study was carried out to assess the level of exposure of some medical and school science laboratory workers in Yobe State to some dangerous organic solvents such as chlorinated hydrocarbons and acetonitrile whose resulting effect may lead to accumulation of Phosgene and cyanide in blood. Phosgene and cyanide are known to have toxic pulmonary effects, and are generated from chloroform and acetonitrile vapors respectively. Most laboratories, especially school laboratories in the research areas do not have enough safety facilities to protect students and other workers from being exposed to poisonous gases, therefore the need for proper investigation to ascertain the level of exposure and suggest possible measure to provide safety to laboratory users. The research employed the use of questionnaire, UV spectrophotometer and Gas chromatography and other analytical instruments to analyze about 200 blood samples collected from various laboratory workers across the study area. The results of the analysis indicated that most of the workers were expose toxic organic solvents during their experimental works in the laboratory without any safety measures taken into consideration and about 75% of the laboratories (both teaching and medical) under the area of this study have inadequate safety measures. The highest concentration of the cyanide 0.068 mg/L in the blood samples is within the harmful level of 0.05 mg/L while phosgene, 1.210 mg/L is below the harmful level of 2.0 mg/L respectively for cyanide and phosgene in blood.

Cyanide, Phosgene, Blood, Laboratory workers

"ANALYSIS OF PHOSGENE AND CYANIDE IN BLOOD SAMPLES AMONG SCIENCE AND MEDICAL LABORATORY USERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 4, page no.e507-e513, April-2022, Available :http://www.jetir.org/papers/JETIR2204467.pdf

"ANALYSIS OF PHOSGENE AND CYANIDE IN BLOOD SAMPLES AMONG SCIENCE AND MEDICAL LABORATORY USERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 4, page no. ppe507-e513, April-2022, Available at : http://www.jetir.org/papers/JETIR2204467.pdf