"less contamination" is correct and can be used in written English.
It refers to a smaller amount or degree of pollution, impurity, or harmful substance. Example: The new water filtration system significantly reduced the amount of contamination in the river, resulting in cleaner drinking water for the community.
In January 2002, he moved to another apartment in the building with less contamination.
Ground water quality, due to less contamination from nitrate, becomes more usable.
(Because radioactivity levels decline over time, deconstruction workers would ultimately be exposed to less contamination).
In addition, the embedded microstructures can be made with less contamination.
In 2013, in an operation referred to as the "Green Fence," China introduced a temporary restriction on waste import, requiring imported materials to contain less contamination.
Energy-dispersive X-ray analysis reveals that the optimal conditions result in less contamination by the electrode element on the processed forest surfaces.
The one-step real-time PCR based on the LightCycler technology is more rapid and less contamination-prone than the nested RT-PCR and allows the precise quantitation of the virus load in the tested specimens.
In conclusion, the present results support the previous findings of less 90Sr contamination than radioCs contamination from the FDNPP accident and indicate the necessity of further investigations of radioSr in the atmospheric environment.
Five of 7 (71%) studies found less air contamination and 2 of 4 studies (50%) less wound contamination with BES.
One of 4 (25%) found less air contamination with SHS and 0 of 1 (0%) less wound contamination.
The need to reduce the impact of traditional electricity generation necessitates an increase in the optimization of alternative systems that produce less environmental contamination.
