41 ppb to ppm

41 ppb = 0.041 ppm

ppbppm
35 ppb0.035
37 ppb0.037
39 ppb0.039
410.041
43 ppb0.043
45 ppb0.045
47 ppb0.047

41 ppb = 0.041 ppm

Formula

1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm