In many parts of the world, unseen airborne particles are causing health problems for people, especially those with seasonal allergies. Tree pollen and other allergens can cause discomfort and health issues for many individuals. While pollen counts and allergy indices are well-documented and easily accessible, there is limited information available on cancer-causing trace elements like lead and arsenic in urban areas of developing countries.
Recently, a team of researchers led by Professor Randall Martin at Washington University in St. Louis analyzed global ambient particulate matter (PM) to understand its components, including mineral dust and trace element oxides. These trace elements, known for their negative health effects, are mainly emitted through human activities such as fossil fuel combustion and industrial processes. The study used data from the Surface Particulate Matter Network (SPARTAN), the only global monitoring network that measures PM elemental composition.
Their research, published in ES&T Air on March 10, provided valuable insights into regions with elevated traces elements. American, Indian, and Vietnamese regions were identified as areas of concern that could benefit from interventions to reduce trace element emissions from human activities. This work could pave the way for future efforts to improve air quality in developing countries.
For more information about this research, visit the McKelvey Engineering website.
