Look at the fallout map of caesium: http://2.bp.blogspot.com/_wNICDkSSg1I/RuV773MrnDI/AAAAAAAAAAk/tMeUcjuCdDQ/s400/400px-Radioactive_fallout_caesium137_after_C

Look at the fallout map of caesium: http://2.bp.blogspot.com/_wNICDkSSg1I/RuV773MrnDI/AAAAAAAAAAk/tMeUcjuCdDQ/s400/400px-Radioactive_fallout_caesium137_after_Chernobyl.jpg http://2.bp.blogspot.com/_wNICDkSSg1I/RuV773MrnDI/AAAAAAAAAA... Poland was lucky with the weather.