Ammonia gas removal operations continue at a factory in Tiruvallur, according to multiple reports. The operations are scheduled to run on July 6 and are described as ongoing for several days, with one outlet noting they enter a fourth day. The reports indicate that removal efforts are continuing at the site rather than being halted, suggesting authorities are still addressing the presence or effects of ammonia gas. While the articles focus on the timeline and continuation of the response measures, they do not provide detailed technical information in the excerpts provided. Overall, the outlets agree that the ammonia removal work at the Tiruvallur factory is still in progress and remains active at the time of publication, with operations continuing into the next day. The combined coverage portrays a sustained, phased response rather than a completed incident within a single day, but it does not specify the extent of progress beyond the fact that the operations have not yet finished.