Author

Festus Chijioke Onwe

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Open access 2026

A Pyspark-Sparksql Pipeline for Urban Air Quality Monitoring: 4-Year Trends and Who Assessment (2021–2024)

A reproducible PySpark–SparkSQL analytical pipeline applied to four years of daily urban air quality monitoring data, addressing five structured research questions about seasonal and temporal variability, pollutant drivers of the Air Quality Index (AQI), human-activity effects on ambient concentrations, and compliance...

Prince Nweke Onyeka, Chinoso Job., Festus Chijioke Onwe · International journal of re... · 0 citations

2026

Architecture and Security Design of a Dual-Service Iot Telemetry and Ecommerce Platform: A Flask–Django Case Study with JWT Authentication and Layered Test Automation

This paper documents the architecture, security design, and database evolution of a two-tier system built to support an environmental-telemetry and micro-desalination business scenario, comprising a Flask REST API for Internet of Things (IoT) buoy telemetry ingestion and a Django eCommerce platform for product sales an...

Nwokpuru Samuel Abafu, Chinonso Job, Festus Chijioke Onwe · International Journal of Lat... · 0 citations