Eskilstuna Municipality has filed an appeal against the Swedish Chemicals Agency's decision to grant Senior Material a permit to use methylene chloride in its production of separator film for electric vehicle batteries. The municipal board reached this decision on October 2nd, with the community building committee scheduled to address the matter during its meeting on October 3rd. The appeal represents a significant challenge to the regulatory approval process for industrial chemical use in Sweden.

The controversy centers on methylene chloride, also known as dichloromethane (DCM), a chlorinated solvent that has been nationally prohibited in Sweden since 1996 due to health risks for workers handling the substance. The chemical is classified as carcinogenic and capable of causing genetic changes, while also being harmful to aquatic organisms. Senior Material received an exemption from this ban for its planned production operations, marking a notable exception to Sweden's long-standing restrictions on the substance.

Public concern over the potential environmental impact has manifested in substantial community opposition. Hundreds of demonstrators gathered outside Senior Material's factory in the Svista industrial area on October 1st, expressing worries about future emissions of the chemical. The protest movement has gained momentum through social media campaigns and a petition that has collected over 130,000 signatures demanding the cessation of methylene chloride emissions.

Municipal officials cite multiple grounds for their appeal, particularly emphasizing the volume of methylene chloride approved—1,280 tons over a two-year period—which they describe as unreasonable given Sweden's phase-out objectives for the substance. Niklas Edmark, business director for Eskilstuna Municipality, stated that the approved quantity significantly exceeds what has been permitted in Sweden in recent years and conflicts with national sustainability goals. The municipality argues that the Chemicals Agency should have applied the precautionary principle more rigorously and expanded its assessment criteria given the scale of proposed use.

Finnair is gradually restoring its Airbus A321 fleet to service after an uncertified cleaning procedure forced the grounding of eight aircraft. The airline confirmed that seat covers were washed with water, a method not properly certified to ensure fire protection standards were maintained. This safety concern prompted the removal of the affected aircraft from service, leading to operational disruptions across Finnair's European network.

The situation began improving over the weekend as Finnair started installing new seat covers on the grounded aircraft. The first A321 returned to service on Sunday, operating a flight from Helsinki to Rhodes. However, seven aircraft remain out of service with no confirmed timeline for their full return. The A321s typically seat approximately 200 passengers and are crucial for Finnair's European route operations.

The grounding has resulted in significant passenger disruptions, with Finnair implementing extensive rebooking procedures. On Sunday alone, approximately 460 passengers were moved to different flights due to aircraft downgrades. The airline has prioritized high-frequency routes such as Helsinki-Stockholm and Helsinki-London, ensuring alternative options are available. In some cases, Finnair has used smaller replacement aircraft and offered incentives for volunteers to switch flights.

To manage the capacity shortfall, Finnair has wet-leased two aircraft with crews from Danish carrier DAT since Wednesday. While flight cancellations have decreased to single digits in recent days, with some days passing without any cancellations, the airline acknowledges that irregularities may continue through the coming week. Finnair is providing accommodation and compensation to affected passengers in accordance with EU air passenger rights regulations as it works to fully resolve the operational challenges.