SOMS, Juris; SOMS, Haralds. APPLICATION OF LOW-COST OPTICAL PM SENSOR FOR MONITORING OF PARTICULATE MATTER AIR POLLUTION IN THE URBAN ENVIRONMENT: A CASE STUDY IN ESPLANĀDE HOUSING ESTATE, DAUGAVPILS CITY. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 223–229, 2021. DOI: 10.17770/etr2021vol1.6595. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/6595.. Acesso em: 4 may. 2024.