Honda Worldwide | Honda Environmental Annual Report 2002



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1. Energy and Resource Saving

Progress in the Targets to be Achieved by 2001 with the Promotion of Energy Saving

Target

To reduce the energy intensity by 15% by 2001
(compared with 1990)

Progress

In fiscal 2001, by taking the following measures, we succeeded in achieving the target shown above, reducing the energy intensity to 12.98 kl/100 million yen, down 15.6% from the 1990 level.

1)Energy

Carbon dioxide emissions at Honda factories was 488,000 CO2-tons in fiscal 2001, down 4% from the previous fiscal year (506,000 CO₂-tons), and down 21% over fiscal 1990. (See the graph at upper right.) Emissions, however, were larger by 1.7% than the target for fiscal 2001 (CO2 emissions of 480,000 CO2-tons), influenced by an increase of 11% in the production output from the planned production. The energy intensity, the calculation unit for which was changed in fiscal 2000, was 22.1 CO₂-tons/100 million yen, down 3.5% from the previous year, thus achieving the target of 22.9 CO₂-tons. The following energy saving efforts were also sustained in fiscal 2001.

Note 1)	CO₂ emission volume and water consumption are in uenced by changes in the production output.
Note 2)	With effect from scal 1999, the buggy, that used to be classified as a power product, has been re-classified as a motorcycle.

•Energy saving efforts made in fiscal 2001

· Reduction by streamlining production lines
· Simplification of the thermal treatment process by changing the materials for crankshafts
· Reduction in the compressor air pressure
· Reduction in the air flow volume from the air conditioner in the coating booth by introducing inverter control
· Introduction of LNG

At our factories, we will further promote energy saving through LCA activities and the best mix of energies, introducing new energies.

The following CO₂ conversion factors were used:

Electricity: 0.404 (CO₂-ton/MWh)
Natural gas: 2.015 (CO₂-ton/1,000 Nm³)
LNG: 1.174 (CO₂-ton/1,000 Nm³)
Kerosene: 2.532 (CO₂-ton/kl)
Gasoline: 2.246 (CO₂-ton/kL)
Light oil: 2.576 (CO₂-ton/kL)
LPG: 3.031 (CO₂-ton/ton)
NFO: 2.716 (CO₂-ton/kL)
Coke: 3.120 (CO₂-ton/ton)

2)Resource saving (Water consumption)

Water consumption at the domestic factories in fiscal 2001 totaled 4,108,000 m³, down 22% from the previous year. This resource saving has been achieved by the following measures.

•Water saving measures taken in fiscal 2001

Saitama Factory: Streamlining of the engine plant
Suzuka Factory: Replacement of cupolas with electric furnaces in the molding process
Suzuka Factory: Recycling of washing water used for coating
(zero wastewater · Kumamoto Factory: Improving the water circulation rate by the use of rainwater

2. Zero Emissions

1)Reduction of waste (By-products)

•Breakdown of waste associated with production activities
(units: 1,000 tons)

Type	Fiscal 1990	Fiscal 2000	Fiscal 2001
External land ll	18.1	0.005	0.0
Intermediate external disposal	8.2	0.03	0.033
Internal incineration	17.0	8.68	7.85
Recycling	139.6	182.02	191.93
Total amount of byproducts	182.9	190.74	199.81

Efforts toward zero external landfill in the last fiscal year were continued at all the domestic factories in fiscal 2001.
We are also making efforts to reduce the total amount of waste and the amount of waste disposed of by incineration.
The amount of waste disposed of by incineration was approximately 8,000 tons, reduced by 47% over fiscal 1998, thus achieving the target of 43% reduction over the fiscal 1998 level. The total amount of waste was approximately 200,000 tons. Influenced by an increase in the production quantity by 6%, metal waste increased by 10%.
From now on, we will further reduce waste incineration by taking drastic measures to sort waste, and will make aggressive efforts to reduce the total amount of waste especially by implementing measures to prevent the generation of waste.
In scal 2001, the following measures were taken to reduce waste.

•Waste (by-product) reduction measures taken in fiscal 2001

· Reduction of combustible waste by proper sorting of waste
· Reduction of waste from the coating process by increasing

2)Prevention of air and water pollution

Air and water quality control are achieved by rigorous monitoring in accordance with our voluntary standards, which are more stringent than the regulations on gas emissions from combustion systems and the regulations on factory effluents. (For measurement results, see Factory Data on pages 47-51.)

In fiscal 2001, the average VOC emissions of the Suzuka Factory and the Saitama Factory, where automobiles are coated, was 42.5 g/m², down 17% from the previous fiscal year. This reduction was achieved by the following measures.

• VOC reduction measures taken in fiscal 2001

· Improving the thinner collection rate
· Improving the coating ef ciency by installing bell painting machine for metallic coating
· Improving the coating efficiency by introducing robots

The measures implemented for the automobile coating process will also be implemented for the motorcycle and power product coating processes to further reduce the emissions of VOC.

3)Chemical emission (PRTR)*

The table on the next page gives the statistical results for fiscal 2001 for the substances falling within the scope of the PRTR Law. The treated amount was approximately 9,950 tons, up about 3% from the previous fiscal year, and the emission levels discharged into the air/hydrosphere amounted to approximately 2,670 tons, down about 5% from the previous fiscal year. (See pages 47-51 for the data for each of Honda's factories.)


*	PRTR:Pollutant Release and Transfer Register

• Results of fiscal 2001 survey in Japan by Honda*¹
[Units: kg (Dioxins : mg-TEQ)]

Qty handled	Name of substance	CAS No.	Substance No.	Released into the air	Released into public water areas	Total released	To sewage	External disposal waste	Recycling	Consumption (shipped amount)	Quantity removed	Total transfer amount
1	-	Water-soluble zinc compounds	76,731	0	113	113	92	4,135	21,699	25,926	6,858	43,834
16	141-43-5	2-Amino ethanol	26,454	0	0	0	0	0	1,230	1,230	3,253	21,971
30	25068-38-6	Bisphenol A-type epoxy resin	107,149	0	0	0	0	2,446	370	2,816	2,389	101,944
40	100-41-4	Ethyl benzene	623,214	242,523	0	242,523	0	0	137,554	137,554	26,594	216,543
43	107-21-1	Ethylene glycol	3,523,728	16	0	16	0	300	4	304	5,687	3,517,721
44	110-80-5	Ethylene glycol monoethyl ether	3,845	2	0	2	0	192	0	192	3,651	0
63	1330-20-7	Xylene	2,924,414	1,283,609	13	1,283,622	0	0	494,759	494,759	220,692	925,341
176	-	Organic tin compounds	16,230	0	0	0	3	103	328	434	0	15,796
198	100-97-0	Hexamethylen tetramine	50,500	0	0	0	0	0	0	0	50,500	0
224	108-67-8	1,3,5-trimethylbenzene	77,525	39,827	0	39,827	0	6,826	164	6,990	4,307	26,401
227	108-88-3	Toluene	2,252,464	1,091,821	0	1,091,821	0	0	43,397	43,397	288,188	829,058
230	-	Lead and its compounds	35,126	0	0	0	10	313	569	892	0	34,234
231	7440-02-0	Nickel	10,184	0	0	0	0	0	0	0	0	10,184
232	-	Nickel compounds	11,611	0	293	293	650	3,371	2,054	6,075	0	5,243
243	-	Barium and its water-soluble compounds	1,884	0	0	0	0	0	18	18	816	1,050
253	302-01-2	Hydrazine	1,573	0	0	0	0	0	0	0	1,573	0
266	108-95-2	Phenol	22,105	0	0	0	0	0	0	0	22,105	0
272	117-81-7	Bis Phthalate (2-ethyl-hexyl)	90,819	0	0	0	0	0	163	163	0	90,656
283	-	Hydrogen uoride or its water-soluble salts	1,844	0	0	0	0	0	0	0	1,844	0
299	71-43-2	Benzene	53,301	153	0	153	0	0	0	0	7,224	45,924
304	-	Boron and its compounds	3,182	0	0	0	0	0	1,110	1,110	2,072	0
307	-	Poly(oxyethylene)= alkylether	4,276	0	0	0	176	1,587	0	1,763	2,513	0
309	9016-45-9	Poly(oxyethylene)= nonyl-phenyl ether	1,219	0	0	0	122	1,097	0	1,219	0	0
310	50-00-0	Formaldehyde	9,002	8,836	0	8,836	0	0	0	0	166	0
311	-	Manganese and its compounds	20,025	0	1,072	1,072	299	3,042	1,608	4,949	1,872	12,132
		Total (Units:kg)	9,948,405	2,666,787	1,491	2,668,278	1,352	23,412	705,027	729,791	652,304	5,898,032
179		Dioxins (Units: mg-TEQ)	1,345.47	5.68	0.50	6.18	315.00	8.59	1,015.70	1,339.29	0.00	0.00

*1	Study conducted on 354 types of primary specified chemical substances falling within the scope of the law concerning the reporting of releases into the environment of specified chemical substances and for promoting improvements in their management (Law Promoting the Management of Chemical Substances). Substances treated on a scale of 1,000 kg or more.
*2	Numbers of primary specified chemical substances falling within the scope of the Law Promoting the Management of Chemical Substances.
*3	Also including the parts sold to external recycling firms.


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