The distribution of Pb, Ni, Zn, Cu, Cr, Mn, S, P, Na, Ca, K, Si, Al, Fe were studied in the mangrove sediments across five different sites in Maharashtra. Energy dispersive X-ray fluorescence method was utilized for the determination of the elements in the sediment both before and after the monsoon. The spatial variation, as well as the monsoon was seen to affect the metal concentration in the mangroves. A total of 34 and 9 bacterial isolates were isolated pre and post-monsoon respectively. The metal tolerance index of the microbes was increased from a pre-monsoon value of 0.57 to 0.92 post-monsoon against a multi-metal mixture of Pb, Ni, Zn, Cu, and Mn at a concentration of 100ppm. Factor analysis revealed Pb, Zn, and Cu to be the principal factors of pollution both pre and post-monsoon. This could probably be due to the presence of nearby industries which are dumping untreated wastes containing high levels of metals which were confirmed by correlation and PCA analysis. Thus this work brings into light the state of the fast declining mangroves of Maharashtra and the associated microbial population. The data presented here could act as a baseline for other researchers and help civic authorities in checking the disposal from numerous industries of Maharashtra. The metal resistant microbes could be enriched further for in–situ bioremediation of mangrove sediments thereby promoting their growth additionally.

研究了马哈拉施特拉邦五个不同地点的红树林沉积物中 Pb、Ni、Zn、Cu、Cr、Mn、S、P、Na、Ca、K、Si、Al、Fe 的分布。利用能量色散X射线荧光法测定季风前后沉积物中的元素。空间变化以及季风被认为会影响红树林中的金属浓度。分别在季风前和季风后分别分离出 34 和 9 个细菌分离株。对于浓度为 100 ppm 的 Pb、Ni、Zn、Cu 和 Mn 的多金属混合物，微生物的金属耐受指数从季风前的 0.57 增加到季风后的 0.92。因子分析表明，铅、锌和铜是季风前后的主要污染因子。这可能是由于附近的工业正在倾倒含有大量金属的未经处理的废物，相关性和 PCA 分析证实了这一点。因此，这项工作揭示了马哈拉施特拉邦快速衰退的红树林和相关微生物种群的状况。此处提供的数据可以作为其他研究人员的基准，并帮助市政当局检查马哈拉施特拉邦众多行业的处置情况。可以进一步富集抗金属微生物，用于红树林沉积物的原位生物修复，从而进一步促进它们的生长。因此，这项工作揭示了马哈拉施特拉邦快速衰退的红树林和相关微生物种群的状况。此处提供的数据可以作为其他研究人员的基准，并帮助市政当局检查马哈拉施特拉邦众多行业的处置情况。可以进一步富集抗金属微生物，用于红树林沉积物的原位生物修复，从而进一步促进它们的生长。因此，这项工作揭示了马哈拉施特拉邦快速衰退的红树林和相关微生物种群的状况。此处提供的数据可以作为其他研究人员的基准，并帮助市政当局检查马哈拉施特拉邦众多行业的处置情况。可以进一步富集抗金属微生物，用于红树林沉积物的原位生物修复，从而进一步促进它们的生长。