The provided text presents a detailed account of the impact and dangers associated with hazardous gases, including statistics and safety precautions. Several indicators suggest this text may have been generated by an AI. First, the organization of information is fairly structured but lacks deeper analysis or personal insights, which is characteristic of AI-generated content. The use of statistics is precise but somewhat generic, and the repetitive warnings about safety appear formulaic. Phrasing such as "you should still be careful" or "a little can go a long way" seems overly cautious, which can imply generic advice rather than tailored human insight. The citations of various sources appear appropriate for a factual discussion, yet they do not exhibit a unique voice or perspective, often found in human-written texts.
Considering these factors, while the text contains relevant information and conforms to logical structure, the absence of nuanced reasoning and personal tone suggests a high probability of it being AI-generated. The nature of the language and the emphasis on safety protocols and statistics indicate a systematic presentation typical of AI rather than a human-experienced narrative. Thus, it is reasonable to conclude that the likelihood of this text being generated by AI is significant, although it is not definitively conclusive without more context concerning the sources of information.