HN is all about everything that impacts engineers in our work lives, and home lives. Did you know fireworks cause microplastics levels to spike in your environment leading to endocrine system hormonal damage in your family? I bet not.
A better source would probaly be this observational study (https://www.sciencedirect.com/science/article/pii/S0025326X2...) and I was unable to find any high quality studies that showed any strong evidence of direct harm.
It (BBC) is just a low quality source for information impacting our lives, with an emphasis on dire-sounding, but poorly understood harms.