Spearman's correlation analysis was subsequently performed between all the BThs identified in the dust samples (Figure and Figure ), and Rhodococcus, Pseudomonas, and Arthrobacter species, known for their capacity to degrade specific BThs , . A negative and statistically significant association was observed between Pseudomonas sp. and BThSO3 (Figure ). The same negative association was found between Pseudomonas sp. and 24MoBTh, suggesting that this species may degrade both BThSO3 and 24MoBTh. Intriguingly, our analysis unveiled a positive (p-value<0.1) association between BTh and Rhodococcus fascians. This association may be explained by several factors, including photodegradation or microbial degradation (e.g., by Pseudomonas) of other compounds such as 24MoBTh leading to the formation of BTh. Additionally, the presence of multiple microorganisms and chemicals in the household dust samples may influence the growth of Rhodococcus fascians and/or BTh metabolism. Therefore, further studies in controlled environments are necessary to provide more insights into the relationship between Rhodococcus fascians and BTh in household dust samples.