quantum-espresso/TDDFPT/Examples/CH4-ENVIRON/environ.in

&ENVIRON
    verbose = 0
    environ_thr = 1.d-1
    environ_type = 'input'
    env_static_permittivity = 78.5
    env_optical_permittivity = 1.776
    env_surface_tension = 0.D0
    env_pressure = 0.D0
/
&BOUNDARY
/
&ELECTROSTATIC
  tol = 1.D-12
/