Quand tu regardes le IQA ou PM2,5 lectures de Temtop et d'autres sources telles que AirNow ou PurpleAir, vous pouvez vous demander pourquoi les lectures sont incompatibles. Pour comprendre la qualité de l'air autour de vous, il est essentiel de savoir comment fonctionnent ces sources de qualité de l'air et sur quoi repose leur précision. Il y a quelques éléments à prendre en compte lorsque vous comparez les lectures de la qualité de l'air provenant de différentes sources. Comme indiqué dans le tableau ci-dessous, la source de données, l'intervalle de temps et le calcul sont des points clés pour déterminer la précision de la qualité de l'air. 
Les mesures de Temtop sont basées sur l'emplacement réel de l'appareil. De plus, lorsqu'il est à l'intérieur, l'appareil est susceptible d'afficher des lectures distinctes lorsque vous changez d'environnement, même de petites actions telles que l'ouverture et la fermeture des fenêtres peuvent affecter les lectures.
En termes de précision, les lectures de Temtop sont principalement basées sur l'heure et la position actuelles de l'appareil, tandis que PurpleAir utilise des capteurs à proximité pour la correction.
L'IQA s'est révélé être un sujet de grande préoccupation au sein de la population. Cependant, de nombreuses personnes ignorent que l'indice IQA est basé sur certaines normes nationales. Aussi, il est assez courant que les sites locaux de mesure de la qualité de l'air suivent des normes différentes ou aient leurs propres normes. Par exemple, les relevés IQA d'AirNow utilisent l'ozone, les PM10 et les PM2,5, voire le NO2 et le CO à certains endroits. Tandis que PurpleAir fournit des lectures AQI à partir de diverses méthodes de conversion, notamment US EPA PM2.5, US EPA PM10, Australian PM2.5 AQI, etc. L'AQI de Temtop est donné directement via l'affichage de l'appareil plutôt que sur le site Web de données en ligne. converti à partir de la lecture actuelle de PM2,5 ou PM10 en utilisant les normes US EPA.
Parfois, vous pouvez trouver des écarts entre les PM2,5 et l'IQA. En utilisant le calculateur AirNow AQI, vous pouvez effectuer une analyse simple, lorsque les PM2,5 sont de 8 et 10 ug/m3, l'AQI est de 33 et 42 respectivement. Mais même de minuscules différences sur les PM2,5 peuvent avoir un impact énorme sur les lectures de l'IQA. Par exemple, lorsque les PM2,5 ne diffèrent que de 2 lectures, l'IQA diffère de 9. Ainsi, avant de supposer que vos lectures AQI sont étonnamment élevées, il est idéal de vérifier et d'analyser d'abord la précision du capteur PM2,5.
Dans la société moderne actuelle, il y a eu une croissance des activités sur les chantiers de construction, une industrialisation rapide et une augmentation du transport privé, ces facteurs et bien d'autres contribuent à des niveaux élevés de pollution de l'air. Cependant, la sensibilisation du public concernant l'impact des polluants sur la santé humaine augmente également en conséquence. Le manque de connaissances sur les sources de mesure de la qualité de l'air est assez évident, comprendre les niveaux sains et malsains de la qualité de l'air n'est que le début pour mieux respirer.
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