Water and Air Quality Dataset on Eco Enzyme Development Environment

The dataset was collected from IoT sensors installed in the eco enzyme experiment tube. The sensors used were a DHT22 sensor to measure temperature and humidity, an MQ7 sensor to monitor carbon monoxide gas, a pH sensor, a turbidity sensor, and a salinity sensor. All sensors were connected to a NodeMCU ESP32 connected to the internet. All sensor readings were sent to a cloud database via the internet. The data transmission interval was every 30 minutes. This dataset contains data readings from June 13, 2025, to July 20, 2025.