Carbon dating and polution
Although the central government had pledged to make spending on environmental protection account for about 1.5 per cent of the nation’s gross domestic product, the actual amount spent was only about 1 per cent over the past few years, he said.
The officials also told a Guangdong forum that the Beijing-Tianjin-Hebei region’s huge industrial output meant it was one of most polluted areas in the world.
China must find a holistic approach to clear the air In 2015, industrial use of coal accounted for about 46 per cent of the total coal consumption, but these furnaces did not have stringent environmental standards that matched those of the thermal power industry, said CCID Group, a think tank under Lei’s ministry.
Wang also said there was a lack of investment in green sectors.
– Carbonate samples that are less than 10 mg, such as forams, may be too small for chemical etching.
They will be microscopically examined and a picture taken but not chemically etched with acid.
He said soaring levels of PM2.5 pollutants – fine particles that pose the greatest harm to public health – had reduced average visibility in the atmosphere over the Beijing-Tianjin-Hebei area by about 50km in recent decades as the region had become one of the world’s most polluted.