Determining the Correlation between Particulate Matter PM10 and Meteorological Factors

Abstract

In the article, we point out the need to measure the mass concentration of particulate matter (PM) in central Europe in a place of residence (a city and a small town), as PM has a negative impact on human health, especially that of children and the elderly. Since different amounts of PM (mainly peaks) were measured at two locations at a distance of 35 m from each other, a control measurement was also performed to verify the conformity of the measurements of both sensors, which was confirmed with measured courses of quantities. Cases of strong correlation (very close relationship) between PM10 and meteorological factors (temperature, humidity, barometric pressure) were found, but cases of no correlation were found as well, probably due to the effect of wind, which has not been measured yet. The article also points to the fact that, especially during the autumn/winter/spring heating season, the air quality in a small village may be worse than in a large city. This was also confirmed by the detected AQI sub-indices from PM2.5 and PM10. Due to the current rise in prices of gas and electricity, the use of wood combustion as a heating source is nowadays becoming increasingly more attractive, which may contribute to the worsening of the air quality in the future.

A Community-Based Sensor Network for Monitoring the Air Quality in Urban Romania

“…However, the strength of the correlation varied across the city from −0.107 (TIM-235) to −0.635 (TIM-0C2). Variations in the correlation intensity between PM10 concentrations and meteorological factors have been reported in other studies as well [61], and they can occur on not only a daily scale but also shorter time scales (12 h averages) [66]. Thus, our results may have been affected by the averaging over a yearly time scale, which only allowed us to explicitly focus on periods of the year when PM10 concentration levels are more affected by local meteorological conditions.…”

“…Finally, the correlation between PM10 concentration and the air temperature was negative. Others have reached the same conclusion [36,60,61,65,66]. However, the strength of the correlation varied across the city from −0.107 (TIM-235) to −0.635 (TIM-0C2).…”

Utilizing low-cost optical sensor for the measurement of particulate matter and calculating Pearson's correlation coefficient

“…We typically use mass concentration measurements in the context of the impact of PM on human health. As for number concentration measurements, this unit is preferred in the context of the impact of PM on the climate [7][8][9] , or for the measurements of ultrafine particles (particles with diameter <0.1 µm, or PM0.1). Due to their smaller size, the mass of PM0.1 particles is negligible and thus they are described more accurately by their number concentration [9] .…”

“…As for number concentration measurements, this unit is preferred in the context of the impact of PM on the climate [7][8][9] , or for the measurements of ultrafine particles (particles with diameter <0.1 µm, or PM0.1). Due to their smaller size, the mass of PM0.1 particles is negligible and thus they are described more accurately by their number concentration [9] . Optical techniques for assessing particle mass rely on how particles engage with light.…”

Relación Entre El Material Particulado (Pm10), Los Parámetros Meteorológicos Y La Concentración De Esporas Fúngicas en La Atmósfera De La Plaza San Martín De Lima

“…Si bien las propiedades físicas y químicas de PM10 se han estudiado ampliamente, se sabe mucho menos sobre la relación que existe entre éstos y las concentraciones de hongos en el aire exterior, además, se ha observado que su abundancia relativa coincide con el aumento de las concentraciones de PM10 (Cao et al, 2014). Por lo general, PM10 se mide como la concentración de la masa del material particulado en microgramos por metro cúbico (µg/m 3 ) (Kirešová & Guzan, 2022).…”