(Monaca, Pa) Shell Polymers Monaca made an announcement on Facebook that over the next few days, they will be reintroducing ethane to the site. As a result, a brighter light may be emitted from their enclosed ground flares for a few days. They want to note that this brightness could be further intensified by low cloud cover or other weather conditions and add that they sincerely apologize for any inconvenience this may cause.