Particulate matter 2.5 causally increased genetic risk of autism spectrum disorder.

"Declarations Ethics approval and consent to participateEach participant received ethical approval and informed consent for the respective study, as detailed in the original publication and consortium. The database for ASD received approval from the Regional Scientific Ethics Committee in Denmark and the Danish Data Protection Agency. Additionally, the database for PM obtained approval from the North West Multi-centre Research Ethics Committee. Consent for publicationNo conflict of interest exists in the submission of this manuscript, and the manuscript is approved by all authors for publication. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This work is supported by the Central Fund of the China Rehabilitation Research Center (2022ZX-ZX-01 and 2022ZX-06), and the Zhejiang Foundation for Disabled Persons (20222004)."