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Modern chemicals, in form of fertilizers and pesticides, have undoubtedly increased the food production worldwide. Over use of chemical application and its effect on environment and human health could not be neglected any further. Residual effect of agrochemicals could be seen in both the terrestrial life and marine life. Future food demand must be achieved with better quality food, along with use of less toxic chemicals. Alternate practices like introduction of GMOs, precision agriculture and IPM must be put into practice, to lessen the load of chemical use. This review evinces the health hazards caused due to misuse and over use of agrochemicals and also talks about the contributing factors, of which poor education and extension system plays pivotal role. Improving the literacy among the farmers, strengthening the extension, training and involvement of media could provide scope for reducing vulnerability of farmers to health related issues caused by prolong exposure to the toxic chemicals.

New technologies are advancing and emerging day by day to improve the safety of humans by making use of various autonomous technologies. The continuous utilization of autonomous vehicles/systems in search and rescue (SAR) operations is a challenging research area particularly for marine-based activities. A comprehensive systematic literature review (SLR) providing an overview of improvisations that have been done in the field of autonomous technologies for search and rescue operation over the last five years has been compiled in this paper. A methodology for using autonomous vehicles in water for SAR operations has been incorporated and demonstrated. The focus of this study is to look at the various techniques and address different challenges faced for human beings’ safety during rescue operation. The comparison of results achieved for various technologies and algorithms is highlighted in this paper. This literature survey proves to be a good source of information for fellow researchers to precisely analyze the study results.

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