diff --git a/Shared/Chem_Shared/Henrys_Law_cts.F90 b/Shared/Chem_Shared/Henrys_Law_cts.F90
index 9cd13fcf..e1ad2293 100644
--- a/Shared/Chem_Shared/Henrys_Law_cts.F90
+++ b/Shared/Chem_Shared/Henrys_Law_cts.F90
@@ -149,8 +149,10 @@ MODULE Henrys_law_ConstantsMod
     1.20E+4              ,   & ! HNO4 - 009
     1.40E+0              ,   & ! SO2 - 010
     2.10E+5              ,   & ! SULF - 011
-    9.90E-4              ,   & ! CO - 012
-    3.6E-02              ,   & ! CO2 - 013
+!   9.90E-4              ,   & ! CO - 012
+    0.00E+0              ,   & ! CO - 012
+!   3.6E-02              ,   & ! CO2 - 013
+    0.00E+0              ,   & ! CO2 - 013
     6.1E-04              ,   & ! N2 - 014
     1.3E-03              ,   & ! O2 - 015
     0.0E+00              ,   & ! H2O - 016
@@ -159,7 +161,8 @@ MODULE Henrys_law_ConstantsMod
     0.00E+0              ,   & ! O1D - 019
     3.00E+1              ,   & ! HO - 020
     5.70E+3              ,   & ! HO2 - 021
-    1.40E-3              ,   & ! CH4 - 022
+!   1.40E-3              ,   & ! CH4 - 022
+    0.00E+0              ,   & ! CH4 - 022
     1.90E-3              ,   & ! ETH - 023
     1.00E-3              ,   & ! ALKA - 024
     5.00E-3              ,   & ! ALKE - 025