It is very important to study the occurrence of high levels of particulate matter due to the potential harm to people's health and to the environment. In the present work we use a non-homogeneous Poisson model to analyse the rate of exceedances of particulate matter with diameter smaller that 2.5 microns (PM ). Models with and without change-points are considered and they are applied to data from Bogota, Colombia, and Mexico City, Mexico. Results show that whereas in Bogota larger particles pose a more serious problem, in Mexico City, even though nowadays levels are more controlled, in the recent past PM were the ones causing serious problems.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9225304 | PMC |
| http://dx.doi.org/10.1080/02664763.2021.1897972 | DOI Listing |
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