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For the Environment Reducing Chemical Substance Discharge

We at Kaneka are working in an ongoing manner to reduce the discharge of volatile organic compounds (VOCs), as well as to voluntarily reduce emissions of six hazardous atmospheric pollutants subject to the Pollutant Release and Transfer Register (PRTR).

K KANEKA
J JAPAN
W WORLDWIDE

Voluntary Plan to Cut VOC Discharge

K J 

We are committed to reducing the discharge of VOCs (see note 1), which are known to cause photochemical smog.
In fiscal 2016, total discharge was 1,556 tons, an 8.6% decrease compared to the previous year. We will continue our efforts to reduce VOC discharge through prevention of leaks from equipment.

Note 1: Volatile Organic Compounds (VOCs) are organic chemical substances that cause suspended particulate matter and photochemical oxidants.

■ VOC Discharge: Voluntary Plan and Performance

Hazardous Atmospheric Pollutants

K J 

Total emissions in fiscal 2016 of six hazardous atmospheric pollutants (shown in the following graphs) were 21.5 tons, which represented a year-on-year decrease of 10%. A decline in dichloromethane contributed to the drop in total emissions. We will continue to make efforts to control total emissions for environmental impact reduction.

PRTR Discharge

K J 

In fiscal 2016, our total discharge of substances subject to the PRTR was 77.9 tons, an increase of 0.8 tons from the previous year.
The total discharge by Group companies in Japan was 82.5 tons, an increase of 11.2 tons compared to the previous year.

■ Fiscal 2016 Parent Company Emissions Subject to the Pollutant Release and Transfer Register Law

(Kilograms)

  Designated Number under Ordinance Chemical Substances Emissions Transferred
Atmospheric Emissions Discharges into Public Waterways Discharges into Soil Internal Landfill Total Fiscal 2015 Total
Large Discharges of 10 Substances 392 Normal hexane 14,500 0 0 0 14,500 10,900 99,539
94 Chloroethylene
(PVC)
12,700 110 0 0 12,810 12,870 1,000
275 Sodium dodecyl
sulfate
0 8,500 0 0 8,500 8,600 0
240 Styrene 5,770 40 0 0 5,810 6,169 7,860
420 Methyl
methacrylate
5,000 3 0 0 5,003 5,103 9
7 Acrylic acid butyl 4,170 0 0 0 4,170 4,130 3,030
134 Vinyl acetate 3,960 53 0 0 4,013 3,450 5,500
157 1,2-dichloroethane 3,600 0 0 0 3,600 3,500 0
232 N,N-dimethylformamide 2,000 830 0 0 2,830 3,510 270,000
186 Dichloromethane (methylene chloride) 2,352 0 0 0 2,352 4,451 31,764
Total Other than the 10 Substances Above 7,566 6,704 0 0 14,270 14,359 45,326
Grand Total for All Substances 61,618 16,240 0 0 77,858 77,042 464,028

Of the 462 substances subject to the PRTR, Kaneka reports about 65 items.


■ Fiscal 2016 Group Company in Japan Emissions Subject to the Pollutant Release and Transfer Register Law

(Kilograms)

   Designated Number under Ordinance Chemical Substances Emissions Transferred
Atmospheric Emissions Discharges into Public Waterways Discharges into Soil Internal Landfill Total Fiscal 2015 Total
Large Discharges of 10 Substances 232 N,N-dimethylformamide 39,020 0 0 0 39,020 26,020 11,450
300 Toluene 22,354 0 0 0 22,354 23,282 270,804
186 Dichloromethane (methylene chloride) 11,600 0 0 0 11,600 10,084 210,201
80 Xylene 4,400 0 0 0 4,400 5,100 0
392 Normal hexane 1,800 0 0 0 1,800 2,100 33,178
213 N,N-dimethylacetamide 1,600 0 0 0 1,600 1,900 75,000
56 Ethylene oxide 1,022 0 0 0 1,022 657 0
127 Chloroform 568 0 0 0 568 200 6,950
355 Bis(2-ethylhexyl) phthalate (DEHP) 57 53 0 0 110 124 522
13 Acetonitrile 0 0 0 0 0 0 7,360
Total Other than the 10 Substances Above 0 0 0 0 0 1,852 18,589
Grand Total for All Substances 82,421 53 0 0 82,474 71,319 634,054

Of the 462 substances subject to the PRTR, group companies in Japan report about 31 items.

Check & Act

The increase in discharge by Group companies in Japan is mainly due to the difference in product type mix that resulted from an increase in the number of specific product types using N,N-dimethylformamide. We will continue our efforts to reduce the discharge of chemical substances.

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