diff --git a/src/com_mod.f90 b/src/com_mod.f90
index 9ac45f1e75cf5aa0fb57bc54b52513d3389b118e..edb4e8b68ed4327208ba08650cd63b432383529b 100644
--- a/src/com_mod.f90
+++ b/src/com_mod.f90
@@ -755,7 +755,6 @@ module com_mod
   integer :: mpi_mode=0 ! .gt. 0 if running MPI version
   logical :: lroot=.true. ! true if serial version, or if MPI .and. root process
   
-  logical :: usekernel=.false.    ! true if the output kernel shall be switched on
   logical :: interpolhmix=.false. ! true if the hmix shall be interpolated
   logical :: turboff=.false.       ! true if the turbulence shall be switched off
   
diff --git a/src/conccalc.f90 b/src/conccalc.f90
index 9d15983006d85ed114d12463cb80e1fa5b0b279e..cc39cdf116a839c919d717424940d3401551fe20 100644
--- a/src/conccalc.f90
+++ b/src/conccalc.f90
@@ -182,7 +182,7 @@ subroutine conccalc(itime,weight)
 
       if (lnokernel.or.(itage.lt.10800).or.(xl.lt.0.5).or.(yl.lt.0.5).or. &
            (xl.gt.real(numxgrid-1)-0.5).or. &
-           (yl.gt.real(numygrid-1)-0.5))) then             ! no kernel, direct attribution to grid cell
+           (yl.gt.real(numygrid-1)-0.5)) then             ! no kernel, direct attribution to grid cell
         if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgrid-1).and. &
              (jy.le.numygrid-1)) then
           if (DRYBKDEP.or.WETBKDEP) then
@@ -319,7 +319,7 @@ subroutine conccalc(itime,weight)
 
         if ((itage.lt.10800).or.(xl.lt.0.5).or.(yl.lt.0.5).or. &
              (xl.gt.real(numxgridn-1)-0.5).or. &
-             (yl.gt.real(numygridn-1)-0.5).or.(.not.usekernel)) then             ! no kernel, direct attribution to grid cell
+             (yl.gt.real(numygridn-1)-0.5).or.(lnokernel)) then             ! no kernel, direct attribution to grid cell
           if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgridn-1).and. &
                (jy.le.numygridn-1)) then
             if (DRYBKDEP.or.WETBKDEP) then
diff --git a/src/drydepokernel.f90 b/src/drydepokernel.f90
index 6ba8d2dec2955a308b0c657dd513b145af02017f..d5317e1b770d4aa29236b49bf310f71a5bd9aa32 100644
--- a/src/drydepokernel.f90
+++ b/src/drydepokernel.f90
@@ -101,10 +101,6 @@ subroutine drydepokernel(nunc,deposit,x,y,nage,kp)
 
    if ((abs(deposit(ks)).gt.0).and.DRYDEPSPEC(ks)) then
 
-    if (.not.usekernel) then
-       drygridunc(ix,jy,ks,kp,nunc,nage)= &
-           drygridunc(ix,jy,ks,kp,nunc,nage)+deposit(ks)
-    else
       if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgrid-1).and. &
         (jy.le.numygrid-1)) then
         w=wx*wy
@@ -133,9 +129,7 @@ subroutine drydepokernel(nunc,deposit,x,y,nage,kp)
            drygridunc(ix,jyp,ks,kp,nunc,nage)+deposit(ks)*w
     endif
 
-    endif ! kernel
     endif ! deposit>0
-
   end do
 end if
 
diff --git a/src/timemanager.f90 b/src/timemanager.f90
index 7ae91dbe0401a95b6f40e80b0657934093994abc..131adf08b65f97a55c273f3b6e931705c6704dfe 100644
--- a/src/timemanager.f90
+++ b/src/timemanager.f90
@@ -146,7 +146,7 @@ subroutine timemanager
   ! print*, 'Initialized lifetime'
 !CGZ-lifetime: set lifetime to 0
   
-  if (.not.usekernel) write(*,*) 'Not using the kernel'
+  if (lnokernel) write(*,*) 'Not using the kernel'
   if (turboff) write(*,*) 'Turbulence switched off'
 
   write(*,46) float(itime)/3600,itime,numpart
diff --git a/src/wetdepokernel.f90 b/src/wetdepokernel.f90
index 65de00ad91f16c500482309417a469a3651d7f8c..2a10ebb8edda6a8666edb1a951b112d50bf3c659 100644
--- a/src/wetdepokernel.f90
+++ b/src/wetdepokernel.f90
@@ -94,10 +94,6 @@ subroutine wetdepokernel(nunc,deposit,x,y,nage,kp)
 
   do ks=1,nspec
 
-  if (.not.usekernel) then
-      wetgridunc(ix,jy,ks,kp,nunc,nage)= &
-           wetgridunc(ix,jy,ks,kp,nunc,nage)+deposit(ks)
-  else
     if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgrid-1).and. &
        (jy.le.numygrid-1)) then
       w=wx*wy
@@ -125,7 +121,7 @@ subroutine wetdepokernel(nunc,deposit,x,y,nage,kp)
       wetgridunc(ix,jyp,ks,kp,nunc,nage)= &
            wetgridunc(ix,jyp,ks,kp,nunc,nage)+deposit(ks)*w
     endif
-  endif 
+
   end do
   end if