Regional Acid Deposition Model (RADM) Lumped Mechanism

(Note: an additional reading on the structure of the mechanism input files is available.


CN = ETH, 2.0, HC3, 2.9, HC5, 4.8, HC8, 7.9, OL2, 2.0, OLT, 3.8, OLI, 4.8, TOL, 7.1, XYL, 8.9, HCHO, 1.0, ALD, 2.4, NR, 1.0, ISO, 5.0;

! Removed organic products in XO2 and XNO2 reactions. ! Removed HC3P product in OP2 and ONIT reactions.

REACTIONS=

{ 1} NO2          =     O3P    +    NO               # 1.0000000  /L1;
{ 2} O3           =     O1D                          # 1.0000E-03 /R1;
{ 3} O3           =     O3P                          # 1.0000E-03 /R2;
{ 4} HONO         =     OH     +    NO               # 1.8100E-01 /L1;
{ 5} HNO3         =     OH     +    NO2              # 1.0000E-05 /R3;
{ 6} HNO4         =     HO2    +    NO2              # 1.0000E-03 /R4;
{ 7} NO3          = .11*NO  +  0.89*NO2 +  0.89*O3P  # 1.0000E+00 /R5;
{ 8} XNO2 + ACO3  =     MO2                          # 6.17E+01  @ -220.0;
{ 9} H2O2         = 2.0*OH                           # 1.0000E-03 /R6;
{10} HCHO         =     CO                           # 1.0000E-03 /R7;
{11} HCHO         =     HO2    +    HO2    +    CO   # 1.0000E-03 /R8;
{12} ALD          =     MO2    +    HO2    +    CO   # 1.0000E-03 /R9;
{13} OP1          =     HCHO   +    HO2    +    OH   # 1.0000E-03 /R10;
{14} OP2          =     ALD    +    HO2    +    OH   # 1.0000E-03 /R11;
{15} PAA          =     MO2    +    OH               # 1.0000E-03 /R12;
{16} KET          =     ACO3   +    ETHP             # 1.0000E-03 /R13;
{17} GLY          = .13*HCHO + 1.870*CO              # 1.0000E-03 /R14;
{18} GLY          = .45*HCHO + 1.550*CO + 0.800*HO2  # 1.0000E-03 /R15;
{19} MGLY         =     ACO3   +     HO2   +    CO   # 1.0000E-03 /R16;
{20} DCB          = .98*HO2 +  0.020*ACO3   +   TCO3 # 1.0000E-02 /R17;
{21} ONIT         = .20*ALD +  0.800*KET + HO2 + NO2 # 1.0000E-04 /R18;
{22} O3P          =     O3                           # 8.3830E+04  @ -1175.0;
{23} O3P + NO2    =     NO                           # 9.56E+03    @ -120.0;
{24} O1D          =     O3P                          # 2.05E+05    @ -110.0;
{25} O1D          =     O3P                          # 9.78E+04    @  -70.0;
{26} O1D + H2O    = 2.0*OH                           # 3.23E+00;
{27} O3  +   NO   =     NO2                          # 2.94E+03  @ 1400.0;
{28} O3  +   OH   =     HO2                          # 2.35E+03  @ 940.0;
{29} O3  +   HO2  =     OH                           # 1.62E+01  @ 500.0;
{30} HO2 +   NO   =     NO2    +     OH              # 5.44E+03  @ -240.0;
{31} HO2 +   NO2  =     HNO4                         # 167.0     @ -749.0;
{32} HNO4         =     HO2    +     NO2             # 2.96E+15  @ 10120.0;
{33} HO2 + HO2    =     H2O2                         # 3.33E+02  @  -773.0;
{34} HO2 + HO2 + H2O   =          H2O2               # 1.12E-05  @  -2978.0;
{35} H2O2 + OH         =    HO2                      # 4.850E+03  @ 200.0;
{36} NO  +  OH    =       HONO                       # 4.440E+02  @ -830.0;
{37} NO  +  NO    =   2.0*NO2                        # 2.4800E-05 @  -530.0;
{38} O3  +  NO2   =       NO3                        # 2.0600E+02 @ 2500.0;
{39} NO3 +  NO    =   2.0*NO2                        # 2.5000E+04 @ -150.0;
{40} NO3 +  NO2   =        NO     +     NO2          # 3.6800E+01  @ 1230.0;
{41} NO3 +  HO2   =        HNO3                      # 3.6900E+03;
{42} NO3 +  NO2   =        N2O5                      # 757.0   @ -270.0;
{43} N2O5         =        NO2    +     NO3          # 7.02E+16    @ 11200.0;
{44} N2O5 + H2O   =    2.0*HNO3                      # 2.94E-06;
{45} OH  +  NO2   =        HNO3                      # 1.54E+03   @ -713.0;
{46} OH  +  HNO3  =        NO3                       # 1.540E+01 @ -785.0;
{47} OH  +  HNO4  =        NO2                       # 1.9100E+03 @ -380.0;
{48} OH  +  HO2   =                                  # 6.7600E+04  @ -230.0;
{49} XNO2 + XNO2  =                                  # 5.29E-01  @ -220.0;
{50} CO  +  OH    =        HO2                       # 3.2300E+02;
{51} OH           =        MO2    {X 300 SQUARED}    # 1.70E+03   @ 1280.0;
{52} ETH +  OH    =        ETHP   {X 300 SQUARED}    # 1.80E+03 @ 444.0;
{53} HC3 +  OH    =  0.83*HC3P + 0.17*HO2 +  0.009*HCHO  + 0.075*ALD
       + 0.025*KET                                   # 2.34E+04  @ 540.0;
{54} HC5 +  OH    =     HC5P  +  0.250*XO2           # 2.54E+04  @ 380.0;
{55} HC8 +  OH    =     HC8P  +  0.750*XO2           # 5.35E+04  @ 380.0;
{56} OL2 +  OH    =     OL2P                         # 3.16E+03  @ -411.0;
{57} OLT +  OH    =     OLTP                         # 7.82E+03  @ -504.0;
{58} OLI +  OH    =     OLIP                         # 1.57E+04  @ -549.0;
{59} TOL +  OH    = .75*TOLP + .250*CSL +  .250*HO2  # 3.09E+03  @ -322.0;
{60} XYL +  OH    = .83*XYLP + .170*CSL +  .170*HO2  # 2.78E+04  @ -116.0;
{61} CSL +  OH    = .10*HO2  + .900*XO2 +  .900*TCO3 # 5.88E+04;
{62} CSL +  OH    =     CSL                          # 5.2900E+04;
{63} HCHO + OH    =     HO2     +    CO              # 1.3200E+04;
{64} ALD +  OH    =     ACO3                         # 1.0100E+04 @ -256.0;
{65} KET +  OH    =     KETP                         # 1.7600E+04 @  745.0;
{66} GLY +  OH    =     HO2  +  2.000*CO             # 1.6900E+04;
{67} MGLY + OH    =     ACO3    +    CO              # 2.5000E+04;
{68} DCB +  OH    =     TCO3                         # 4.1700E+04;
{69} OP1 +  OH    = 0.5*MO2 + 0.500*HCHO +0.500*OH   # 1.4800E+04;
{70} OP2 +  OH    = {0.5*HC3P+} 0.500*ALD + 0.500*OH # 1.4800E+04;
{71} PAA +  OH    =     ACO3                         # 1.4800E+04;
{72} PAN +  OH    =     HCHO + NO3 + XO2 {x 300 sq}  # 9.0700E+02   @ 444.0;
{73} ONIT + OH    =     {HC3P  +}    NO2             # 2.2800E+04  @ 540.0;
{74} ISO +  OH    =     OLTP                         # 3.7500E+04  @ -409.0;
{75} ACO3 + NO2   =     PAN                          # 4.1200E+03  @ -181.0;
{76} PAN          =     ACO3    +    NO2             # 1.1700E+18  @ 13543.0;
{77} TCO3 + NO2   =     TPAN                         # 6.9100E+03;
{78} TPAN         =     TCO3    +    NO2             # 1.1704E+18  @ 13543.0;
{79} MO2 +  NO    =     HCHO    +    HO2   +    NO2  # 6.1700E+03  @ -180.0;
{80} HC3P + NO    = .75*ALD  +  0.25*KET + 0.09*HCHO  + 0.036*ONIT
        +  0.964*NO2 +  0.964*HO2                    # 6.170E+03   @ -180.0;
{81} HC5P + NO    = .38*ALD + 0.69*KET + 0.08*ONIT
            +  0.92*NO2 + 0.92*HO2                   # 6.170E+03   @ -180.0;
{82} HC8P + NO    = .35*ALD + 1.06*KET + 0.04*HCHO
              + 0.24*ONIT + 0.76*NO2 +   0.76*HO2    # 6.170E+03   @ -180.0;
{83} OL2P + NO    = 1.6*HCHO + HO2 + NO2 + 0.20*ALD  # 6.170E+03   @ -180.0;
{84} OLTP + NO    =     ALD  + HCHO + HO2 + NO2      # 6.170E+03   @ -180.0;
{85} OLIP + NO    =     HO2 + 1.45*ALD +  0.28*HCHO
               +  0.1*KET   +      NO2               # 6.170E+03   @ -180.0;
{86} ACO3 + NO    =     MO2    +     NO2             # 6.170E+03   @ -180.0;
{87} TCO3 + NO    =     NO2 + 0.920*HO2 +  0.890*GLY  + 0.110*MGLY
             + 0.050*ACO3 +  0.950*CO  +  2.000*XO2  # 6.170E+03   @ -180.0;
{88} TOLP + NO    =     NO2 +  HO2 +  0.17*MGLY
             +   0.16*GLY +   0.70*DCB               # 6.170E+03   @ -180.0;
{89} XYLP + NO    =  NO2 + HO2 + .45*MGLY + .806*DCB # 6.170E+03   @ -180.0;
{90} ETHP + NO    =  ALD  +   HO2 +    NO2           # 6.170E+03   @ -180.0;
{91} KETP + NO    =  MGLY +      NO2  +      HO2     # 6.170E+03   @ -180.0;
{92} OLN  + NO    =  HCHO   +    ALD +    2.0*NO2    # 6.170E+03   @ -180.0;
{93} HCHO + NO3   =  HO2    +     HNO3   +     CO    # 8.820E+02   @ 2058.0;
{94} ALD +  NO3   =  ACO3   +     HNO3               # 2.060E+04   @ 1900.0;
{95} GLY +  NO3   =  HNO3    +    HO2 +  2.000*CO    # 8.820E+02   @ 2058.0;
{96} MGLY + NO3   =  HNO3    +    ACO3    +    CO    # 2.060E+03   @ 1900.0;
{97} DCB +  NO3   =  HNO3    +    TCO3               # 2.060E+03   @ 1900.0;
{98} CSL +  NO3   =  HNO3   +   XNO2  + 0.500*CSL    # 3.250E+04;
{99} OL2 +  NO3   =  OLN                             # 2.940E+03   @ 2923.0;
{100} OLT +  NO3  =  OLN                             # 1.470E+04   @ 1895.0;
{101} OLI +  NO3  =  OLN                             # 4.850E+04   @ 975.0;
{102} ISO +  NO3  =  OLN                             # 8.590E+02;
{103} OL2 +  O3   =  HCHO + 0.400*ORA1 + 0.420*CO
                + 0.120*HO2                          # 1.760E+01   @ 2633.0;
{104} OLT +  O3   =  .53*HCHO + 0.500*ALD +  0.33*CO  + 0.20*ORA1
       + 0.20*ORA2 + 0.23*HO2 +  0.22*MO2 +  0.10*OH # 1.9400E+01  @ 2105.0;
{105} OLI +  O3   = .18*HCHO + 0.72*ALD +  0.10*KET  + 0.23*CO  + 0.06*ORA1
     + 0.29*ORA2 + 0.26*HO2 +  0.14*OH + 0.31*MO2    # 1.0700E+01  @ 1136.0;
{106} ISO +  O3   = .53*HCHO + 0.500*ALD +  0.33*CO  +  0.20*ORA1
      + 0.20*ORA2 + 0.23*HO2 +  0.22*MO2 +  0.10*OH  # 1.810E+01  @ 2013.0;
{107} HO2 +  MO2  =    OP1                           # 1.130E+02  @ -1300.0;
{108} HO2 +  ETHP =    OP2                           # 1.130E+02  @ -1300.0;
{109} HO2 +  HC3P =    OP2                           # 1.130E+02  @ -1300.0;
{110} HO2 +  HC5P =    OP2                           # 1.130E+02  @ -1300.0;
{111} HO2 +  HC8P =    OP2                           # 1.13E+02   @ -1300.0;
{112} HO2 +  OL2P =    OP2                           # 1.13E+02   @ -1300.0;
{113} HO2 +  OLTP =    OP2                           # 1.13E+02   @ -1300.0;
{114} HO2 +  OLIP =    OP2                           # 1.13E+02   @ -1300.0;
{115} HO2 +  KETP =    OP2                           # 1.13E+02   @ -1300.0;
{116} HO2 +  ACO3 =    PAA                           # 1.13E+02   @ -1300.0;
{117} HO2 +  TOLP =    OP2                           # 1.13E+02   @ -1300.0;
{118} HO2 +  XYLP =    OP2                           # 1.13E+02   @ -1300.0;
{119} HO2 +  TCO3 =    OP2                           # 1.13E+02   @ -1300.0;
{120} HO2 +  OLN  =    ONIT                          # 1.13E+02   @ -1300.0;
{121} MO2 +  MO2  = 1.5*HCHO   +    HO2              # 2.79E+02   @ -220.0;
{122} MO2 +  ETHP = .75*HCHO   +    HO2 +  0.75*ALD  # 2.06E+02   @ -220.0;
{123} MO2 +  HC3P = .84*HCHO + 0.770*ALD +  0.260*KET +  1.000*HO2                            # 6.17E+01  @ -220.0;
{124} MO2 +  HC5P = .77*HCHO + 0.41*ALD +  0.75*KET +  1.000*HO2                            # 5.00E+01  @ -220.0;
{125} MO2 +  HC8P = .80*HCHO + 0.46*ALD +  1.39*KET +  1.000*HO2                                 # 4.26E+01  @ -220.0;
{126} MO2 +  OL2P =  1.55*HCHO + 0.350*ALD +  HO2    # 2.06E+02  @ -220.0;
{127} MO2 +  OLTP =  1.25*HCHO + 0.750*ALD +  HO2    # 2.06E+02  @ -220.0;
{128} MO2 +  OLIP =  .89*HCHO  + 0.725*ALD +  HO2 +  0.55*KET                               # 2.50E+02  @ -220.0;
{129} MO2 +  KETP =  0.75*HCHO + 0.750*MGLY + HO2    # 2.50E+02  @ -220.0;
{130} MO2 +  ACO3 =   HCHO + 0.5*HO2 +  0.5*MO2 + 0.50*ORA2                        # 1.41E+03  @ -220.0;
{131} MO2 +  TOLP =   HCHO + 0.17*MGLY + 0.16*GLY+  0.70*DCB  +  2.0*HO2                      # 2.50E+02  @ -220.0
{132} MO2 +  XYLP =   HCHO + 0.45*MGLY + 0.806*DCB + 2.000*HO2                             #2.50E+02  @ -220.0;
{133} MO2 +  TCO3  = .50*HCHO + 0.445*GLY +  0.055*MGLY  + 0.50*ORA2 + 0.025*ACO3 + 0.460*HO2 +  0.475*CO  +  XO2    # 1.41E+03  @ -220.0;
{134} MO2 +  OLN =  1.75*HCHO + 0.50*HO2 + ALD + NO2 # 2.50E+02  @ -220.0;
{135} ETHP+  ACO3 =  ALD + 0.5*HO2 +  0.5*MO2 + 0.5*ORA2                            # 5.00E+02  @ -220.0;
{136} HC3P + ACO3 =  .77*ALD + 0.26*KET +  0.5*HO2+ 0.50*MO2 +  0.5*ORA2                 # 1.47E+02  @ -220.0;
{137} HC5P + ACO3 =  .41*ALD + 0.75*KET +  0.5*HO2+ 0.50*MO2 +  0.5*ORA2                    # 1.23E+02  @ -220.0;
{138} HC8P + ACO3  =  .46*ALD + 1.39*KET +  0.5*HO2 + 0.50*MO2 +  0.5*ORA2                     # 1.06E+02  @ -220.0;
{139} OL2P + ACO3  =  .80*HCHO + 0.6*ALD +  0.5*HO2
+ 0.5*MO2 +  0.5*ORA2                    # 5.00E+02  @ -220.0;
{140} OLTP + ACO3 =   ALD + 0.5*HCHO + 0.5*HO2+ 0.5*MO2 +  0.5*ORA2                        # 5.00E+02  @ -220.0;
{141} OLIP +  ACO3  = .725*ALD + 0.55*KET +  0.14*HCHO+0.5*HO2 +  0.50*MO2  + 0.5*ORA2           # 6.17E+02  @ -220.0;
{142} KETP + ACO3  =   MGLY + 0.5*HO2 +  0.5*MO2
+ 0.5*ORA2                              # 6.17E+01  @ -220.0;
{143} ACO3 + ACO3  =  2.0*MO2                        # 1.75E+03  @ -220.0;
{144} ACO3 + TOLP  =   MO2 + 0.170*MGLY + 0.16*GLY
       +  0.70*DCB  +    HO2                         # 6.17E+01  @ -220.0;
{145} ACO3 + XYLP  =  MO2 + 0.45*MGLY + 0.806*DCB
              +   HO2                                # 6.17E+01  @ -220.0;
{146} ACO3 + TCO3  =  MO2 + 0.92*HO2 +  0.89*GLY
      +  0.11*MGLY + 0.05*ACO3 + 0.95*CO + 2.0*XO2   # 1.75E+03  @ -220.0;
{147} ACO3 + OLN   =  HCHO +  ALD +  0.5*ORA2
                    +  NO2 +  0.5*MO2                # 6.17E+01  @ -220.0;
{148} OLN +  OLN   = 2.0*HCHO + 2.0*ALD +  2.0*NO2   # 5.29E-01  @ -220.0;
{149} XO2 +  HO2   =    {OP2  RC, 5/92}              # 1.13E+02  @ -1300.0;
{150} XO2 +  MO2   =    HCHO   +     HO2             # 2.50E+01  @ -220.0;
{151} XO2 +  ACO3  =    MO2                          # 6.17E+01  @ -220.0;
{152} XO2 +  XO2   =                                 # 5.29E-01  @ -220.0;
{153} XO2 +  NO    =    NO2                          # 6.17E+03  @ -180.0;
{154} XNO2 + NO2   =    {ONIT RC, 5/92}              # 6.17E+03  @ -180.0;
{155} XNO2 + HO2   =    {OP2  RC, 5/92}              # 1.13E+02  @ -1300.0;
{156} XNO2 + MO2   =    HCHO   +     HO2             # 2.50E+01  @ -220.0;
{157} NR           =    NR                           # 1.0;


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