• Munmi Gogoi
• Dr. Dilip Saikia

Construction activities of road and building constitute an important source of environmental pollutant mainly particulate matter (PM) emissions. One of the common example of air pollution due to PM is heavy constructions of road that may cause a substantial temporary impact on local air quality. In this piece of work, we are going to study the air pollutant created at different phases of construction of four-lane highway using foldscope. Substrate is designed and installed at the construction site of four-lane highway to collect dust particles. An acrylic adhesive clear double-sided tape is used to design the substrate, substrates are mounted at a height of 6 feet from the ground at several locations and kept for 45 days and dust particles are allowed to deposit on the substrate. Samples collected from the different place are analyzed by using foldscope and size of the dust particles are estimated using simple techniques (using foldscope). For the estimation of the size of dust particles, PVC 0.85mm thickness slides of 1mm and 0.5mm grids are used. From the result observed it is seen that the dimension of dust particles deposited on the substrates are of the order of 10-2mm. We have also estimated the size distribution of the dust particles that collide the substrate at a height of 6 feet above ground for the different sites.

Monitoring of Dust particles in and around the newly constructed of four-lane highway connecting Tezpur and Itanagar using Foldscope

"Monitoring of Dust particles in and around the newly constructed of four-lane highway connecting Tezpur and Itanagar using Foldscope ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.882-885, June 2019, Available :http://www.jetir.org/papers/JETIR1907883.pdf

"Monitoring of Dust particles in and around the newly constructed of four-lane highway connecting Tezpur and Itanagar using Foldscope ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp882-885, June 2019, Available at : http://www.jetir.org/papers/JETIR1907883.pdf