This study has assessed the concentration of Total Volatile Organic Compounds (TVOCs) emissions across selected automobile repair workshops in and around Port Harcourt metropolis. EGVOC-180 TVOCs gas monitor was used to measure the TVOCs concentration levels emitted from 10 purposively selected automobile repair workshops. One sample t-test statistical analysis was performed using SPSS version 23 statistical Package. The study results showed difference in mean concentration levels of TVOCs in the morning and afternoon working hours of the day. The morning working periods (8 am-12 noon) recorded lower levels of ground level mean concentration (0.95±0.77 mg/m 3 and range of 0.15-2.5 mg/m 3) when compared to the higher values (1.38±0.89 mg/m 3 and range of 0.45-3.00 mg/m 3) observed during the afternoon working periods (12 noon–4 pm). All the selected automobile repair workshops locations had TVOCs concentration levels higher than the control sample areas. The study emphasized a significant difference in TVOCs concentration levels between the observed sampled locations and the Nigerian Ambient Air Quality Standard of 160 µg/m3 (0.16 mg/m3) for 3-hourly average daily values. TVOCs have been scientifically established to have negative effects on air quality, climate change, human health and the biotic environment. Similarly, increase in anthropogenic emissions from automobile repair workshops have the possibility of contributing significantly to soil and surface water pollution. In order to minimise the negative effects of this study outcome, health exposure and risk assessment of emissions from automobile repair workshop domains should be encouraged in rapidly developing cities in Nigeria by Policy Makers.