# Optimized machine learning model for air quality index prediction in major cities in India

*PRI Rank #19 · Topics and Trends in Most Cited Air Quality and Health Impacts Papers, Class of 2026*

*Canonical URL: https://pri.pepkio.com/top-papers/air-quality-and-health-impacts/2026/rank-19*

| Field | Value |
| --- | --- |
| Rank | #19 |
| 18m citations | 59 |
| Journal | Scientific Reports |
| Year | 2024 |
| DOI | 10.1038/s41598-024-54807-1 |
| Corresponding authors | Shitharth Selvarajan |
| Institution | Jain (Deemed-to-be University), India |

**Ranking page:** [Topics and Trends in Most Cited Air Quality and Health Impacts Papers, Class of 2026](https://pri.pepkio.com/top-papers/air-quality-and-health-impacts/2026)

**Paper link:** [10.1038/s41598-024-54807-1](https://doi.org/10.1038/s41598-024-54807-1)

## Topics

Air Quality Index (AQI) · Grey Wolf Optimization (GWO) · Decision Tree (DT) algorithm · air pollution prediction · Delhi · Hyderabad · Kolkata · Bangalore · Visakhapatnam · Chennai · Kaggle air quality dataset · k-nearest Neighbor · Random Forest · Support vector regressor · R-Square · Root mean square error (RMSE) · Mean square error · MAE · hybrid machine learning model · urban air quality monitoring

## Cite this ranking

```
Pepkio Research Index (PRI). Topics and Trends in Most Cited Air Quality and Health Impacts Papers, Class of 2026. https://pri.pepkio.com/top-papers/air-quality-and-health-impacts/2026. Accessed 2026-10-28.

Zheng Su, Tinsley Li, Thematic Shifts in Early-High-Impact Cancer Genomics and Diagnostics Research: A Bibliometric and Semantic Analysis. bioRxiv 2026.07.04.736459; doi: https://doi.org/10.64898/2026.07.04.736459
```