Question
What does microplastics flowing into the river system
talk about our waste management? An analysis of the stretches of the river Ganga by Delhi-based environment NGO Toxics Link has revealed pollution by microplastics, defined as synthetic solid particles sized ranging 1 micrometre (μm) to 5 millimetre (mm), which are insoluble in water. The Ganga flows across five States and has been at the centre of a massive multi-crore undertaking by the Centre, in the form of the National Mission for Clean Ganga, to rid it off contamination. Microplastics are recognised as a major source of marine pollution. Untreated sewage from many cities along the riverās course, industrial waste and religious offerings wrapped in non-degradable plastics pile pollutants into the river as it flows through several densely populated cities. The plastic products and waste materials released or dumped in the river break down and are eventually broken down into micro particles and the river finally transports significantly large quantities downstream into the ocean, which is the ultimate sink of all plastics being used by humans. Essentially all along microplastics are flowing into the river system. It does reflect or suggest a direct linkage between the poor state of both solid and liquid waste management; hence it is critically important to initiate steps to remediate it. The study, āQuantitative analysis of Microplastics along River Gangaā was based on an analysis of water samples at Haridwar, Kanpur and Varanasi. The highest concentration of such plastic was found at Varanasi, comprising single-use and secondary plastic products. The water testing was carried out in collaboration with the National Institute of Oceanography (NIO) in Goa. The samples were tested to identify the exact type or resin core and the results show presence of at least 40 different kinds of polymers as microplastics. The shapes and nature of the observed resins ranged from fibres to fragments, films and beads. Fragments were the predominant shape in all locations, followed by film and fibre. Microbeads were observed in Varanasi and Kanpur, while no beads were found in Haridwar. The most frequent size range observed in all the samples wasSolution
In the passage, it is mentioned that āIt does reflect or suggest a direct linkage between the poor state of both solid and liquid waste managementā
ABCD is a cyclic quadrilateral, such that ratio of measures ā A, ā B and ā C is 1 : 4 : 5, then the measure of ā D is.
The perimeter of 4 squares is 20 cm, 28 cm, 32 cm and 48 cm respectively. What will be the area of the square having perimeter equal to sum of edges of ...
In measuring the sides of a rectangle, there is an excess of 14% on one side and 10% deficit on the other. Then the error percent in the area is
An equilateral triangle ABC is inscribed in a circle with centre O. D is a point on the minor are BC and ∠ CBD = 40°. Find the measure of ∠ ...
In a store room there are one windows and one door. The area of the windows is 1.25m2, which is (¼) of the area of the door. The cost of pai...
A box has 80 Red, 40Blue and 40 Black Balls. 25% of Red Balls and 50% of Blue Balls are taken away, percentage of Black balls at present is
In a rectangular floor of length and breadth of 16 metres and 7 metres, respectively, square tiles each of 4 metre edge length are to be laid. If the co...
A rectangular ground is 80 metre long and 60 metre broad. If two 20 metre wide paths one parallel to the breadth and one parallel to the length, of theļæ½...
If the length of certain rectangle is decreased by 4 cm and breadth is increased by 2 c, it would result in a square of the same area. What is the perim...
A frustum of a cone has radii of 8 cm and 5 cm, and the slant height is 13 cm. Find the total surface area of the frustum.