GEP  Vol.8 No.6 , June 2020
Trace Metals in Fine and Respirable Ambient Air Particulates on Trinidad’s West Coast
Abstract: The paper analyzed the concentrations of trace metals in fine and respirable particulates (fine-PM1 and PM2.5; respirable-PM10) to determine baseline concentrations in the ambient air and the factors impacting its distribution such as land use and time of year when levels may be concerning to public health. Measurements of particulates along with meteorological parameters were made at four sites over the heavily populated west coast of Trinidad (10&#17632'N, 61&#17618'W) during March ’15-May ’16, representing rural, urban, mixed background and industrial land uses. The study found mean levels of trace metals to be highest at the industrial and urban stations. Public health exceedances (referenced to the Canadian AAQ public health standards (Ontario-MoE, 2012)) were measured for beryllium, cadmium, chromium, iron, manganese and nickel (in PM10). Iron, manganese and nickel, most associated with particulates at the industrial station, were in frequent exceedance. Beryllium—concentrated in coarse PM (PM2.5-10) with only a single measured exceedance at the mixed background station likely poses minimal threat to the health of the nearby population. Cadmium—concentrated in fine PM which peaked once only at the rural station was likely due to an irregular event within a narrow timeframe during the time of sampling. Iron and manganese were frequently above the Canadian public health threshold, but predominated in the coarse PM fraction, suggesting localised sources. Nickel, concentrated in the fine PM fraction, was frequently in exceedance particularly at the industrial station. Cadmium and nickel are genotoxic and should be regulated in order to reduce the burden of toxic carcinogens to which the population can be exposed.
Cite this paper: Baboolal, H. , Balladin, D. and Chadee, S. (2020) Trace Metals in Fine and Respirable Ambient Air Particulates on Trinidad’s West Coast. Journal of Geoscience and Environment Protection, 8, 61-81. doi: 10.4236/gep.2020.86006.

[1]   Balluz, L., Wen, X.-J., Town, M., Shire, J. D., Qualter, J., & Mokdad, A. (2007). Ischemic Heart Disease and Ambient Air Pollution of Particulate Matter 2.5 in 51 Counties in the United States. Public Health Reports, 122, 626-633.

[2]   Bruker (2010). Preparing Your Laboratory for a Bruker 810-MS or 820-MS ICP Mass Spectrometer. Bremen: Bruker Daltonik GmbH.

[3]   Bruske, I., Hampel, R., Ruckerl, R., Schneider, A., Heinrich, A., Oberdorster, G., Peter, A. et al. (2010). Impact of Ambient Air Pollution in the Differential White Blood Cell Count in Patients with Chronic Pulmonary Disease. Inhalation Toxicology, 22, 245-252.

[4]   Central Statistical Office, T & T (2019). 2000 Census Data. Ministry of Planning and Sustainable Development.

[5]   DEFRA (2008). Expert Panel on Air Quality Standards: Consultation on Guidelines for Metals and Metalloids in Ambient Air for the Protection of Human Health. London: Department for Environment, Food and Rural Affairs.

[6]   Dockery, W., Pope III, C. A., Xu, X., Spengler, J. D., Ware, J. H., Fay, M. E., Speizer, F. E. et al. (1993). An Association between Air Pollution and Mortality in Six US Cities. The New England Journal of Medicine, 329, 1753-1759.

[7]   Environmental Management Authority of Trinidad and Tobago (2014). Republic of Trinidad and Tobago—The Environmental Management Act 35:05 Rules: Air Pollution Rules 2013.

[8]   European Commission (2001). Ambient Air Pollution by As, Cd and Ni Compounds-Position Paper Final Version.

[9]   Garrison, V. H., Foreman, W. T., Genualdi, S., Griffin, D. W., Kellogg, A. C., Majewski, M. S., Smith, G. W. et al. (2006). Saharan Dust—A Carrier of Persistent Organic Pollutants, Metals and Microbes to the Caribbean? International Journal of Tropical Biology, 54, 9-21.

[10]   Garrison, V., Lamothe, P., Morman, S., & Plumlee, G. (2010). Trace-Metal Concentrations in African Dust: Effects of Long-Distance Transport and Implications for Human Health. In 19th World Congress on Soil Science—Soil Solutions for a Changing World (pp. 33-36). Brisbane, Australia: Published on DVD.

[11]   Geiger, A., & Cooper, J. (2010). Appendix C: Overview of Airborne Metals Regulations, Exposure Limits, Health Effects, and Contemporary Research.

[12]   Gowrie, M., Agard, J., Barclay, G., & Mohammed, A. (2015). Forecasting Emergency Paediatric Asthma Hospital Admissions in Trinidad and Tobago: Development of a Local Model Incorporating the Interactions of Airborne Dust and Pollen Concentrations with Meteorological Parameters and a Time-Lag Factor. Open Journal of Air Pollution, 5, 109-126.

[13]   Grahame, T., & Schlesinger, R. (2010). Cardiovascular Health and Particulate Vehicular Emissions: A Critical Evaluation of the Evidence. Air Quality, Atmosphere, and Health, 3, 3-27.

[14]   Griffin, D. W. (2007). Atmospheric Movement of Microorganisms in Clouds of Desert Dust. Clinical Microbiology Reviews, 20, 459-477.

[15]   Hassan, N. P.-Z. (2007). Analysis of Environmental Samples Using Microwave-Assisted Acid Digestion and Inductively Coupled Plasma Mass Spectrometry: Maximising Total Element Recoveries. Water Air Soil Pollution, 178, 323-334.

[16]   Khanna, I., Khare, M., & Gargava, P. (2015). Health Risks Associated with Heavy Metals in Fine Particulate Matter: A Case Study in Delhi City, India. Journal of Geoscience and Environment Protection, 3, 72-77.

[17]   Lepeule, J., Laden, F., Dockery, D., & Schwartz, J. (2012). Chronic Exposure to Fine Particles and Mortality: An Extended Follow-Up of the Harvard Six Cities Study from 1974 to 2009. Environmental Health Perspectives, 120, 965-971.

[18]   Lipferta, F., & Wyzgab, R. (2019). Longitudinal Relationships between Lung Cancer Mortality Rates, Smoking, and Ambient Air Quality: A Comprehensive Review and Analysis. Critical Reviews in Toxicology, 49, 790-818.

[19]   Mahowald, N., Hamilton, D., Mackey, K., Moore, J., Baker, A., & Scanza, R. A. (2018). Aerosol Trace Metal Leaching and Impacts on Marine Mircoorganisms. Nature Communications, 9, 1-15.

[20]   Mohammed, A., May, T., Echols, K., Walther, M., Manoo, A., Maraj, D., Orazio, C. et al. (2011). Metals in Sediments and Fish from Sea Lots and Point Lisas Harbors, Trinidad and Tobago. Marine Pollution Bulletin, 64, 169-173.

[21]   Monteil, M. A., Gyan, K., Henry, W., Lacaille, S. L.-E., McKay, S., & Antoine, R. M. (2005). African Dust Clouds Are Associated with Increased Paediatric Asthma Accident and Emergency Admissions on the Caribbean Island of Trinidad. International Journal of Biometeorology, 49, 371-376.

[22]   Norville, W. (2019). Fractionation of Trace Metals in Coastal Sediments from Trinidad and Tobago, West Indies. Marine Pollution Bulletin, 150, Article ID: 110774.

[23]   Ontario-MoE (2012). Ontario’s Ambient Air Quality Criteria PIBS # 6570e01.

[24]   Pinto, E., Soares, C., Couto, C., & Almeida, A. (2015). Trace Elements in Ambient Air at Porto Metropolitan Area-Checking for Compliance with New European Union (EU) Air Quality Standards. Journal of Toxicology and Environmental Health, Part A, 78, 848-859.

[25]   Rosman, K., & Taylor, P. (1999). 1997 Report of the IUPAC Subcommittee for Isotopic Abundance Measurements. Pure and Applied Chemistry, 71, 1593-1607.

[26]   Surujdeo-Maharaj, S. (2010). Heavy Metals in Rivers of Trinidad and Tobago. PhD Thesis, St. Augustine: The University of Trinidad and Tobago, Department of Life Sciences.

[27]   Trejo-Gonzalez, A., Riojas-Rodriguez, H., Texcalac-Sangrador, J., Guerrero-Lopez, C., Cervantes-Martinez, K., Hurtado-Diaz, M., & Sierra-de-la-Vega, L. A.-B. (2019). Quantifying Health Impacts and Economic Costs of PM2.5 Exposure in Mexican Cities of the National Urban System. International Journal of Public Health, 64, 561-572.

[28]   United Nations Children’s Fund (2017). Danger in the Air: How Air Pollution Can Affect Brain Development in Young Children.

[29]   US Environmental Protection Agency (1998). METHOD 6020A ICP-MS.

[30]   US Environmental Protection Agency (2005). Standard Operating Procedure for the Determination of Metals in Ambient Particulate Matter Analyzed by Inductively Coupled Plasma/Mass Spectrometry (ICP/MS).

[31]   Utsunomiya, S., Jensen, K., & Keeler, G. A. (2004). Direct Identification of Trace Metals in Fine and Ultrafine Particles in the Detroit Urban Atmosphere. Environmental Science and Technology, 38, 2289-2297.

[32]   World Health Organisation, Regional Office for Europe (2019). Non-Communicable Diseases and Air Pollution. In WHO European High-Level Conference on Non-Communicable Diseases (p. 28). Denmark: WHO Regional Office for Europe.

[33]   Zhang, L., Jin, X., Johnson, A., & Gies, J. (2016). Hazard Posed by Metals and as in PM2.5 in Air of Five Megacities in the Beijing-Tianjin-Hebei Region of China during APEC. Environmental Science and Pollution Research, 23, 17603-17612.