Id |
Subject |
Object |
Predicate |
Lexical cue |
T26 |
0-131 |
Sentence |
denotes |
Air quality index (AQI) reports daily air quality and its elevated level is associated with public health risks (Szyszkowicz 2019). |
T27 |
132-283 |
Sentence |
denotes |
Based on different national quality standards and dose-response relationships of pollutants, countries have different air quality indices (Zhang et al. |
T28 |
284-302 |
Sentence |
denotes |
2020; Sofia et al. |
T29 |
303-309 |
Sentence |
denotes |
2020). |
T30 |
310-454 |
Sentence |
denotes |
The Indian national air quality index considers eight pollutants (PM10, PM2.5, NO2, SO2, NH3, CO, O3, and Pb) with a 24-hourly averaging period. |
T31 |
455-675 |
Sentence |
denotes |
It is subdivided into six categories i.e., good (0–50), satisfactory (51–100), moderately polluted (101–200), poor (201–300), very poor (301–400), and severe (401–500) as shown in Fig. 1 (Perera 2018; Ghorani-Azam et al. |
T32 |
676-682 |
Sentence |
denotes |
2016). |
T33 |
683-887 |
Sentence |
denotes |
The sub-indices for individual pollutants at a monitoring location are calculated using its 24-hourly average concentration value (8-hourly in case of CO and O3) and health breakpoint concentration range. |
T34 |
888-974 |
Sentence |
denotes |
The worst sub-index is the AQI for that location (https://app.cpcbccr.com/AQI_India/). |
T35 |
975-1107 |
Sentence |
denotes |
An increment in AQI causes acute and chronic mode health concern especially in the older age people and in children (Januszek et al. |
T36 |
1108-1125 |
Sentence |
denotes |
2020; Pant et al. |
T37 |
1126-1132 |
Sentence |
denotes |
2020). |
T38 |
1133-1269 |
Sentence |
denotes |
Due to the COVID-19 pandemic confinement, there is a significant reduction in the level of such toxic pollutants globally (Selvam et al. |
T39 |
1270-1300 |
Sentence |
denotes |
2020; Singh and Chauhan 2020). |
T40 |
1301-1360 |
Sentence |
denotes |
Fig. 1 Indian national air quality index—category and range |