A study of the long term changes in the electromagnetic environment using data from continuous monitoring sensors in Greece.

4 b confirms the fact of an increasing trend of environmental EMF in cellular frequencies after 2017.

also in 63,971 other papers

Focusing on the graphs of Pedion24, the first 3 years (2014–2017) the high-pass filter has a decreasing trend (Fig. 4 b), the low-pass an increasing trend (Fig. 5 ), and the wideband (Fig. 3 b) is almost stable until 2016, with a small decrease from 2016 to 2017.

also in 47,180 other papers