Design of a device to sample ammonia gas emission from flooded rice system

Noor Azmi, Nur Nabilah (2019) Design of a device to sample ammonia gas emission from flooded rice system. [Project Paper] (Submitted)

Text lp FK 2019 80.pdf Download (22MB)

Abstract

Ammonia gas volatilization in agriculture sector mainly in flooded rice systems needs to be studied in order to increase yield and productivity and reduce losses mainly in terms of economic. However, there is no research that have been conducted to measure how much ammonia gas loss from Nitrogen containing fertilizers applied in flooded rice fields in Malaysia. Monitoring the ambient ammonia concentration at paddy fields and its surrounding is important because in Malaysia, residential area are located nearby. Excessive ammonia exposure at high concentration and long period of time can cause burning of the nose, throat and respiratory tract meanwhile for low concentrations can cause coughing, and nose and throat irritation. Readily available ammonia detector and sensors are sold at high price with few limitations such as detection limit where it cannot detect ammonia gas at a low concentrations since ammonia levels in the natural atmosphere can be very low due to wind and temperature. Monitoring atmospheric ammonia concentrations does not require highly rapid detectors. The gas analysis setup also should include a selective mechanism that only significant gas can affect the detector's surrounding system. In this study, a simple device to sample the ammonia gas at a low concentrations in flooded rice system is designed.

Item Type:	Project Paper
Subjects:	T Technology > TD Environmental technology. Sanitary engineering
Faculty:	Faculty of Engineering
Depositing User:	Ms. AZLINA ZAINAL ABIDIN
Date Deposited:	19 Nov 2025 08:21
Last Modified:	19 Nov 2025 08:25
URI:	http://psaspb.upm.edu.my/id/eprint/2626

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