Environment monitoring is the newly emerging field in significant ways and it influenced many directions. IoT and its progress regarding this area are quite well, but being dynamic in nature environment monitoring required precision in data, therefore requirements of real-time data are increased. The problem of power consumption, communication and computation are still in the development phase in IoT. In this paper, we represent a literature survey about recent trends in the environmental monitoring. We mainly focused on the small scale application and its implementation. Furthermore, our objective is to investigate recent small-scale IoT applications and network layer protocols that are embedded in the small-scale landscape system.