Comment submitted by Silvio Mazzella Jr.

Docket (EPA-R09-OAR-2026-3664) California; Attainment Date Extension for the South Coast, California 2012 Annual PM2.5 Fine Particulate Matter Nonattainment Area Opinion. On the topic of minimizing stacking pollution, well before the U.S. EPA "serious" NAAQS deadline of December 31th 2030, I hereby suggest all Governmental pesticide applications should be banned on days of high PM2.5 pollution. Likewise, what IF future PM2.5 dockets consider/mention incinerators ( PM2.5, dioxin, PCDD/F ), cancer clusters ( the California Cancer Registry ), IF any, as well as all C677T population(s) in nonattainment areas? Thank You for considering and discussing my ideas. Perinatal exposure to ambient fine particle air pollution and risk of childhood ewing sarcoma in a population-based case-control study in California (1988-2015). ... [ https://pubmed.ncbi.nlm.nih.gov/40055781/ ]. Extremely rare cancer striking kids in rich SoCal city takes worrying turn — as possible cause emerges. By Zain Khan. 07/12/2026. [ https://nypost.com/2026/07/12/us-news/extremely-rare-cancer-striking-kids-in-rich-socal-city-takes-worrying-turn-as-possible-cause-emerges/ ]. Tuscany, Italy and PM2.5, dioxin, PCDD/F pollution: liver cancer, larynx cancer, lung cancer, non-Hodgkin lymphoma ( NHL ), leukaemia. [Epidemiological study on the population resident in the neighbourhood of an incinerator in Tuscany Region (Central Italy)]. ... [ PMID : 33706489 ]. [ https://pubmed.ncbi.nlm.nih.gov/33706489/ ]. 2. 2020 census profiles California - NALEO Educational Fund Accessed July 13, 2026 [ https://naleo.org/wp-content/uploads/2021/12/2020-Census-Profiles-CA.pdf ]. A Potential Strategy for Atherosclerosis Prevention in Modernizing China - Hyperhomocysteinemia, MTHFR C677T Polymorphism and Air Pollution (PM2.5) on Atherogenesis in Chinese Adults. ... [ PMID : 36806868 ]. Geographical and ethnic variation of the 677C>T allele of 5,10 methylenetetrahydrofolate reductase (MTHFR): findings from over 7000 newborns from 16 areas world wide. B Wilcken, F Bamforth, Z Li, H Zhu, A Ritvanen, et al ( 2003 ). [ https://pmc.ncbi.nlm.nih.gov/articles/PMC1735571/pdf/v040p00619.pdf ]. 3. PubMed " C677T" [ https://pubmed.ncbi.nlm.nih.gov/?term=C677T ] PubMed "MTHFR epigenetics" [ https://pubmed.ncbi.nlm.nih.gov/?term=MTHFR+epigenetics ]. Silvio Mazzella Jr. South Coast, CA. the PM2.5 air pollution, any recent cancer cluster [ PMID : 40055781 ]? July 13, 2026 ( disclaimer ). IMO.GEM.NTH.SLP. SQP.