I agree. To my best knowledge smart meters as we know them in US are not so widespread in Greece. I know that we have some GSM meters for high power consumers like gas stations. They use gsm for having precise measurements by distance and for security reasons. This tech is not so much known here in general public I mean. Now, regarding the health issues and SM. What can I say, if we look around there are so many different ways we exposed to emf. Radio, WIFI, GSM. These are working 24/4 along with other services not known to the general public.In general all these different services are working under the international standards and sometimes below of them. As a ham radio operator I am aware that if I have a problem of interference or noise in my radio spectrum I can call an interdependent service and have them take measurements and locate the source of the problem. I guess these services exist in every country and everyone can ask for there help. I have found a very interesting video here about EMF that can help.
Source Youtube.
Also personally i use earthing - grounding as a counter measure when i can against the EMF exposure . There are some videos online you can find plenty of info about that.
Again... SM is just a part of that BIG problem.