Or maybe I have issue with my initial and boundary concentration file or tolerence set up as the error says that,

Processing will continue with QS set to ZERO. <<–<<

```
After CLDPROC : Gas 1.287E+03 | Aer 3.928E+12 | Non 6.203E+00
```

Comments on Species in degradation routines

```
Euler Backward Iterative Parameters -
Chemistry Integration Time Interval (min): 2.0000
EBI maximum time step (min): 2.5000
Species convergence tolerances:
NO2 5.00E-04
NO 5.00E-04
O 1.00E+00
O3 5.00E-04
NO3 5.00E-04
O1D 1.00E+00
OH 5.00E-04
HO2 5.00E-04
H2O2 5.00E-04
N2O5 5.00E-04
HNO3 5.00E-04
HONO 5.00E-04
PNA 5.00E-04
SO2 5.00E-04
SULF 1.00E+00
SULRXN 1.00E+00
C2O3 5.00E-04
MEO2 5.00E-04
RO2 5.00E-04
PAN 5.00E-04
PACD 5.00E-04
AACD 5.00E-04
CXO3 5.00E-04
ALD2 5.00E-04
XO2H 5.00E-04
PANX 5.00E-04
FORM 5.00E-04
MEPX 5.00E-04
MEOH 5.00E-04
ROOH 5.00E-04
XO2 5.00E-04
XO2N 5.00E-04
NTR1 5.00E-04
NTR2 5.00E-04
FACD 5.00E-04
CO 5.00E-04
HCO3 1.00E+00
ALDX 5.00E-04
GLYD 5.00E-04
GLY 5.00E-04
MGLY 5.00E-04
ETHA 5.00E-04
ETOH 5.00E-04
KET 5.00E-04
PAR 5.00E-04
ACET 5.00E-04
PRPA 5.00E-04
XPRP 5.00E-04
XPAR 5.00E-04
ROR 5.00E-04
ETHY 5.00E-04
ETH 5.00E-04
OLE 5.00E-04
IOLE 5.00E-04
ISOP 5.00E-04
ISO2 5.00E-04
ISOPRXN 1.00E+00
ISPD 5.00E-04
INTR 5.00E-04
ISPX 5.00E-04
HPLD 5.00E-04
OPO3 5.00E-04
EPOX 5.00E-04
EPX2 5.00E-04
TERP 5.00E-04
TRPRXN 1.00E+00
TERPNRO2 5.00E-04
APIN 5.00E-04
BENZENE 5.00E-04
CRES 5.00E-04
BZO2 5.00E-04
OPEN 5.00E-04
BENZRO2 5.00E-04
TOL 5.00E-04
TO2 5.00E-04
TOLRO2 5.00E-04
XOPN 5.00E-04
XYLMN 5.00E-04
XLO2 5.00E-04
XYLRO2 5.00E-04
NAPH 5.00E-04
PAHRO2 1.00E+00
CRO 5.00E-04
CAT1 5.00E-04
CRON 5.00E-04
OPAN 5.00E-04
ECH4 5.00E-04
CL2 5.00E-04
CL 5.00E-04
HOCL 5.00E-04
CLO 5.00E-04
FMCL 5.00E-04
HCL 5.00E-04
CLNO2 5.00E-04
CLNO3 5.00E-04
SVAVB2 5.00E-04
SVAVB3 5.00E-04
SVAVB4 5.00E-04
SVAVB1 5.00E-04
SESQ 5.00E-04
SESQRXN 1.00E+00
SOAALK 5.00E-04
H2NO3PIJ 5.00E-04
H2NO3PK 5.00E-04
ACLI 5.00E-04
ACLJ 5.00E-04
ACLK 5.00E-04
IEPOXP 5.00E-04
ASO4J 5.00E-04
AISO3J 5.00E-04
AGLYJ 5.00E-04
MTNO3 5.00E-04
AMTNO3J 5.00E-04
AMTHYDJ 5.00E-04
AAVB2J 5.00E-04
AOLGAJ 5.00E-04
AAVB3J 5.00E-04
AAVB4J 5.00E-04
AISO1J 5.00E-04
AOLGBJ 5.00E-04
AISO2J 5.00E-04
ASQTJ 5.00E-04
APOCI 5.00E-04
APNCOMI 5.00E-04
APOCJ 5.00E-04
APNCOMJ 5.00E-04
PCVOC 5.00E-04
PCSOARXN 5.00E-04
VLVPO1 5.00E-04
VSVPO1 5.00E-04
VSVPO2 5.00E-04
VSVPO3 5.00E-04
VIVPO1 5.00E-04
VLVOO1 5.00E-04
VLVOO2 5.00E-04
VSVOO2 5.00E-04
VSVOO3 5.00E-04
VSVOO1 5.00E-04
FORM_PRIMARY 5.00E-04
ALD2_PRIMARY 5.00E-04
BUTADIENE13 5.00E-04
ACROLEIN 5.00E-04
ACRO_PRIMARY 5.00E-04
TOLU 5.00E-04
HG 5.00E-04
HGIIAER 5.00E-04
HGIIGAS 5.00E-04
```

WARNING: EBI solver in cell ( 1, 1, 1) Init.Conc. for CO = 1.7010E+03 ppmV

WARNING: EBI solver in cell ( 5, 3, 1) Init.Conc. for CO = 1.1389E+03 ppmV

WARNING: EBI solver in cell ( 5, 3, 1) Init.Conc. for ECH4 = 1.8168E+04 ppmV

WARNING: EBI solver in cell ( 6, 3, 1) Init.Conc. for CO = 2.2110E+03 ppmV

WARNING: EBI solver in cell ( 6, 3, 1) Init.Conc. for ECH4 = 7.0054E+04 ppmV

WARNING: EBI solver in cell ( 4, 4, 1) Init.Conc. for CO = 1.2668E+03 ppmV

WARNING: EBI solver in cell ( 4, 4, 1) Init.Conc. for ECH4 = 1.8166E+04 ppmV

WARNING: EBI solver in cell ( 5, 4, 1) Init.Conc. for NO = 1.6114E+03 ppmV

WARNING: EBI solver in cell ( 5, 4, 1) Init.Conc. for CO = 2.5065E+04 ppmV

WARNING: EBI solver in cell ( 5, 4, 1) Init.Conc. for ETHA = 6.6877E+03 ppmV

WARNING: EBI solver in cell ( 5, 4, 1) Init.Conc. for PAR = 3.2024E+03 ppmV

WARNING: EBI solver in cell ( 5, 4, 1) Init.Conc. for ECH4 = 1.3287E+06 ppmV

WARNING: EBI solver in cell ( 5, 4, 1) Init.Conc. for PCVOC = 1.8629E+03 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for NO = 5.4779E+03 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for SO2 = 1.4094E+03 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for CO = 8.9320E+04 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for ETHA = 2.4453E+04 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for PAR = 9.7643E+03 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for PRPA = 1.3725E+03 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for OLE = 1.2606E+03 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for TOL = 3.1300E+03 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for ECH4 = 4.8729E+06 ppmV

WARNING: EBI solver in cell ( 6, 4, 1) Init.Conc. for PCVOC = 6.8216E+03 ppmV

WARNING: At solution attempt # 1

WARNING: EBI Euler convergence failure

Reducing EBI time step because of MAXPRED failure in

Cell ( 81, 38, 1) for the below species: : Init.Conc, Pred.Conc.

NO2 5.9723E+02 2.5739E+03 ppmV

Thanks for your help.

Hasibul