This policy does not insure against the release, discharge or dispersal of Pollutants, or loss or damage caused thereby (except as provided under Section 8.3.1.-6. Extensions of coverage -Property Damage), regardless of any other cause or event contributing concurrently or in any other sequence to the loss or damage, except to the extent the release, discharge, dispersal, seepage or migration is directly caused by physical loss or damage, not otherwise excluded.