TableĀ 3

Trace element concentrations (ng/m3) in NYC hookah bars as measured by X-ray fluorescence

Hookah Bar IDNaMgAlSClKCaFeZn
151194BDL1289861922428423
2115261BDL112660985494226116129
3193911536462795576825937
420868201651423931087412
513553311991761303129516
5aBDL1BDL151110921196821
6NDNDNDNDNDNDNDNDND
7712220802004851468312
83843026839611532237268119640
  • BDL, below the detection limit; ND, not determined; NYC, New York City.