Monitoring the industrial sources of aerosol in Cubatao, Brazil, using a scanning elastic lidar and a lidar doppler

Renata F Da Costa ,Izabel Da Silva Andrade,Roberto Guardani,Eduardo Landulfo,Maria Lucia Goncalves Guardani ,Fernanda De Mendonça Macedo ,Maria H.g De A Salani ,Thaís Corrêa ,Márcia Talita Amorim Marques ,Daniel Silveira Lopes ,Elaine Cristina Araújo

doi:10.1051/epjconf/201817604011

Renata F Da Costa , Izabel Da Silva Andrade + Show 9 more

Open Access

https://doi.org/10.1051/epjconf/201817604011

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Abstract

Field campaigns with a scanning multiwavelength elastic lidar coupled with a Doppler system to monitor industrial atmospheric aerosol emissions were carried out, with the objective of monitoring aerosol emission sources and plume dispersion. Since the technique provides information on the spatial and temporal distribution of aerosol concentration, the implementation of a systematic monitoring procedure is proposed as a valuable tool in air quality monitoring applied to regions of interest.

Highlights

The area around the Brazilian city of Cubatao is known for the highly concentrated industrial activities, which, combined with the specific geographical situation, results in a series of problems related with air quality [1].Cubatao is located in a narrow coastal plain surrounded by a steep mountain range to the north, west, and east, and by the sea to the south
Information about wind velocity and wind direction were acquired at the same site and time with the Doppler lidar for 12 levels of measurements, 40, 60, 80,100,120, 140, 160, 180, 200, 230, 260 and 290 m
The observed aerosol plume is probably being generated in the north sector, where the fertilizer plants are located, and transported by the wind to the south sector

Summary

Introduction

The area around the Brazilian city of Cubatao is known for the highly concentrated industrial activities, which, combined with the specific geographical situation, results in a series of problems related with air quality [1]. Cubatao is located in a narrow coastal plain surrounded by a steep mountain range to the north, west, and east, and by the sea to the south. Due to the local topography and proximity of the ocean, wind direction and velocity show daily changes that affect air quality, and frequent events of high pollutants concentration in the industrial area are recorded. A significant number of events of high levels of PM2.5, PM10, O3, NO2 and SO2, are recorded by the local authority (CETESB), which operates 5 air quality monitoring stations in the region [2]

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