Abstract：
For nearly two years, a persistent foam cover has been observed during the post-monsoon season in the Yamuna River beneath the barrage near Okhla in Delhi, India. This affair has been a matter of public concern now, after the gigantic appearance of foam in November 2021, as the visibility of foam has awakened people\'s environmental \'conscience\' over the \'concealed\' chemical pollution. The mechanisms of agents responsible for foaming in rivers, particularly surfactants and phosphates, have received wide attention in the dynamic community of river pollution. Many studies in the past, around the globe, have evidently provided different rationales behind the dense foam formation in rivers, yet the Concerned Govt. Authorities have highlighted the cause of foam formation in the river Yamuna is associated with the presence of detergents and phosphates as foaming agents. Despite this, an aperture with copious unaccounted factors or underlying agents still exists to rationalize the foam formation and persistence. In this article, we outline these unaccounted factors which might be responsible for the foam formation and stabilization and give indications for future research directives towards the emergence of studies regarding the dense foam formation in river Yamuna.
摘要：
近两年来,在季风后季节，在德里Okhla附近的弹幕下的Yamuna河中观察到了持久的泡沫覆盖，印度。这件事现在已经成为公众关注的问题，在2021年11月泡沫的巨大外观之后，随着泡沫的可见度唤醒了人们对环境的“良心”，“隐藏”化学污染。负责在河流中起泡的试剂的机理，特别是表面活性剂和磷酸盐，在河流污染的动态社区中受到了广泛的关注。过去的许多研究，世界各地,显然为河流中密集的泡沫形成提供了不同的理由，关注的政府。当局强调了Yamuna河中泡沫形成的原因与洗涤剂和磷酸盐作为发泡剂的存在有关。尽管如此,仍然存在具有大量不明原因因素或潜在因素的孔，以合理化泡沫的形成和持久性。在这篇文章中,我们概述了这些可能导致泡沫形成和稳定的原因，并为未来的研究指示提供了有关Yamuna河中致密泡沫形成的研究的指示。
