Evaluation of
The Environmental Impact Assessment
For the Proposed Aluminium Smelter
(2,50,000 TPA)
Near Jharsuguda, Orissa
Prepared by:
Mark Chernaik, Ph.D.
Staff Scientist
Environmental Law Alliance Worldwide U.S.
October 2005
This document expresses the opinion of its author and not necessarily the opinions of the U.S. office of the
Environmental Law Alliance Worldwide or other individuals or oganizations affiliated with the Environmental Law
Alliance Worldwide.
At the request of Nityanand Jayaraman, I evaluated the Environmental Impact Assessment for the
Proposed Aluminium Smelter (2,50,000 TPA) Near Jharsuguda, Orissa (the EIA).
1.
Qualifications
In 1990, I earned a doctorate in biochemistry from Johns Hopkins University School of Hygiene
and Public Health in Baltimore, Maryland, U.S.A. Since 1992, I have held the position of Staff
Scientist for the U.S. Office of the Environmental Law Alliance Worldwide in Eugene, Oregon,
U.S.A. In this position, I provide expert advice about the environmental impacts of industrial
facilities to environmental professionals throughout the world. My submissions have been noted in
judgments of the Supreme Court of India and the Supreme Court of Pakistan.1 In the past few
years, I have helped environmental professionals assess the impacts of aluminum smelters in Chile,
Jamaica, Trinidad, Malaysia, and Australia.
In my view, the EIA contains the following deficiencies.
2.
The EIA fails to require use of adequate technology to limit the environmental impacts
of aluminum smelters
The sponsor of the proposed project – Vedanta Alumina Limited (VAL) – is proposing to build an
aluminum smelter that falls far short of twenty-first century environmental standards.
In December 2001, the Integrated Pollution Prevention and Control (IPPC) Bureau of the European
Commission published its Reference Document on Best Available Techniques in the Non Ferrous
Metals Industries.2 These best available techniques reference documents (BREFs) specify pollution
control measures that must be taken into account when the competent authorities of Member States
impose conditions for permits to industrial facilities. Vedanta Resources plc, the parent company
of the sponsor of this proposed project, is located in the United Kingdom – a Member State of the
European Commission. As described below, Vedanta Resources would be discouraged on
environmental grounds from building in the U.S. and the European Union the kind of facility that it
is proposing to build near Jharsuguda, Orissa for the following reasons.
2.1.
The proposed aluminum smelter would do nothing to control emissions of polyfluorinated hydrocarbons (PFCs)
The release of poly-fluorinated hydrocarbons (PFCs) is one of the most significant impacts of
aluminum smelters. According to the IPCC:
“PFCs as tetra-fluoro methane (CF4) and hexa-fluoro ethane (C2F6) are formed during the
anode effects. They are emitted in the ratio CF4:C2F6 approximately 10:1. They cannot be
removed from the gas stream with existing technology once they are formed ... Emissions
of PFCs are a key environmental issue for the aluminium industry and extensive research is
under way to improve the presently incomplete knowledge of the problems and possible
solutions.”3
1
M.C. Mehta v. Union of India, 1999-(003)-CLJ 0361–SC; Shehla Zia v. WAPDA, PLD 1994 (SC) 693.
Available at: ftp://ftp.jrc.es/pub/eippcb/doc/nfm_bref_1201.pdf
3
BREF for the Non Ferrous Metals Industries, page 287
2
The control of PFCs must be a top priority for operators of aluminum smelters. According to the
IPCC:
“Polyfluorinated carbons (PFC’s) like CF4 and C2F6 are produced during the anode effect
in the electrolysis cells. Both gases are powerful climate gases with 100 year Global
Warming Potential’s of 6500 and 9200 respectively. …
“Taking these factors into consideration the use of centre worked prebaked cells with
automatic multiple point feeding of alumina is considered to be BAT for the production of
primary aluminium. The process will have the following features: Computer control of the
electrolysis process based on active cell databases and monitoring of cell operating
parameters to minimise the energy consumption and reduce the number and duration of
anode effect.”4
The EIA for the proposed aluminum smelter near Jharsuguda, Orissa, contains no information about
how the sponsor of the project will control emissions of PFCs.
2.2.
The proposed aluminum smelter would do nothing to control sulfur dioxide emissions
The proposed aluminum smelter would be a significant source of sulfur dioxide emissions.
According to the EIA, the petroleum coke used for the production of carbon electrodes that form the
aluminum reduction cells will contain 3% sulfur, all of which is converted to sulfur dioxide and
emitted into the atmosphere from anode bake ovens and when anode is consumed during
electrolysis.5
Sulfur dioxide is a criteria air pollutant. According to the U.S. Environmental Protection Agency:
“Sulfur dioxide (SO2) causes a wide variety of health and environmental impacts because of
the way it reacts with other substances in the air. Particularly sensitive groups include
people with asthma who are active outdoors and children, the elderly, and people with heart
or lung disease. Peak levels of SO2 in the air can cause temporary breathing difficulty for
people with asthma who are active outdoors. Longer-term exposures to high levels of SO2
gas and particles cause respiratory illness and aggravate existing heart disease. SO2 reacts
with other chemicals in the air to form tiny sulfate particles. When these are breathed, they
gather in the lungs and are associated with increased respiratory symptoms and disease,
difficulty in breathing, and premature death.”6
According to the IPCC:
“Taking these factors into consideration the use of centre worked prebaked cells with
automatic multiple point feeding of alumina is considered to be BAT for the production of
primary aluminium. The process will have the following features: … If local, regional or
4
BREF for the Non Ferrous Metals Industries, pages 291 and 325-326
EIA, page AVI-2
6
Health and Environmental Impacts of SO2. http://www.epa.gov/air/urbanair/so2/hlth1.html
5
long-range environmental impacts require sulphur dioxide reductions, the use of low sulphur
carbon for the anodes or anode paste if practicable or a sulphur dioxide scrubbing system.”7
The EIA for the proposed aluminum smelter near Jharsuguda, Orissa, contains no information about
how the sponsor of the project will control emissions of sulfur dioxide.
2.3
The proposed aluminum smelter would dispose of spent pot liners in landfills
Improper disposal of spent aluminum pot liners (SPLs) poses a major environmental risk. In the
United States, spent aluminum pot liners are a listed hazardous waste (K088 – Spent Aluminum
Potliners).8 According to the U.S. EPA:
“Constituents found in this waste included polynuclear aromatic hydrocarbons and metals,
including arsenic, fluoride, and cyanide. Generally, concentrations of these constituents in
spent potliners are as follows: <0.005mg/kg to 200 mg/kg polynuclear aromatics, <1.1 to
<40 mg/kg arsenic, 18.25 mg/kg to 9,190 mg/kg total cyanide, 2.6 mg/kg to 4,800 mg/kg
amenable cyanide, 230 mg/kg to 135,000 mg/kg fluoride, and various concentrations of
other hazardous metals.”9
Several “Superfund” sites in the United States (that is, sites listed on the National Priorities List and
requiring government-financed remedial actions) have resulted from the improper disposal of SPLs,
costing several millions of dollars in clean-up costs.10
The U.S. EPA prohibits the disposal on land of untreated spent aluminum pot liners.11 According to
the U.S. EPA.:
“The Environmental Protection Agency (EPA) is proposing a more environmentally-sound
regulatory strategy for the treatment of K088 waste. Every year around 100,000 tons of
K088 waste (spent aluminum potliner from primary aluminum reduction) is generated by the
aluminum industry. Under our existing Land Disposal Restrictions (LDR) program,
generators are required to treat this waste to meet numerical concentrations standards prior
to land disposal. Current treatment methods, while effective in achieving these numerical
standards, have resulted in an almost three-fold increase in waste volume. Today's proposal
signals a new direction for the LDR program, one which fosters the use of environmentallysound recycling technologies over treatment that merely prepares a waste for land disposal.
This proposal not only promotes the use of a technology that generates two usable products,
fluoride dust and glass frit, it also results in the destruction of significant amounts of cyanide
in K088 waste.”12
7
BREF for the Non Ferrous Metals Industries, pages 325-326
U.S. Code of Federal Regulations, Title 40, Part 261, §261.32 Hazardous wastes from specific sources
9
U.S. EPA (May 2000) "Best Demonstrated Available Technology (BDAT)Background Document for Spent
Aluminum Potliners – K088." http://www.epa.gov/epaoswer/hazwaste/ldr/k088/k088back.pdf
10
NPL Site Narrative for National Southwire Aluminum Co. (http://www.epa.gov/superfund/sites/npl/nar1305.htm)
NPL Site Narrative for Kaiser Aluminum Mead Works (http://www.epa.gov/superfund/sites/npl/nar998.htm).
11
http://www.epa.gov/epaoswer/hazwaste/ldr/k088.htm
12
U.S. EPA (July 2000) "Proposed Rule Aims to Revise Certain Treatment Standards for Spent Potliners from Primary
Aluminum Reduction (K088) and Identify a New Regulatory Classification Scheme for Vitrification Units Treating
K088 Waste." http://www.epa.gov/epaoswer/hazwaste/ldr/k088/k088-fs.txt
8
According to the IPPCB:
“The principles of the minimisation and re-used of process residues are techniques that form
part of BAT. ... Particular examples are: The use of SPL in other processes as raw material
or as a fuel, if possible.”13
Without any justification for doing so and contrary to internationally mandated best practices, the
EIA for the proposed aluminum smelter near Jharsuguda, Orissa, calls for land disposal of unteated
SPLs.
3.
The EIA fails to assess the impact of the disposal of spent pot liners
Beyond failing to provide for adequate treatment of SPLs (see discussion immediately preceding),
Chapter 4 of the EIA on Impact Assessment contains no information whatsoever about how the land
disposal of SPLs would impact the environment. Chapter 5 of the EIA on Environmental
Management Plan contains scant details about how and where the SPLs would be disposed on land.
The EIA merely states:
“Land disposal scheme may contain lined pits. This landfill sites will be designated as a
secure containment in conformity with CPCB guidelines. It is envisaged to dispose these
wastes into liner pond with impervious liner made of HDPE and also to install a leachate
collection system and leak detection system.”14
The EIA’s failure to assess the impact of the disposal of spent pot liners leaves the following critical
questions unanswered: 1) Which groundwater and surface water resources would be imperiled by
the land disposal of SPLs? 2) How much cyanide, fluoride and other toxic substances would enter
these water resources under a foreseeable worst-case scenario or during the decades after the waste
material is abandoned?
4.
The EIA fails to adequately assess the impact of air pollutant emissions
Chapter 4 of the EIA on Impact Assessment, Section 4.3.4 on Impact on Air Quality, contains a
quantitative assessment of how air pollutant emissions from the proposed aluminum smelter would
impact ambient air quality. This assessment suffers from a number of serious flaws.
4.1.
The EIA uses erroneous air pollutant emission factors
To predict how a proposed industrial facility would impact ambient air quality, one needs to know
the rate at which the facility will release pollutants into the air and a computer model to predict how
their release will affect levels of pollutants in air surrounding the facility. For two critical pollutants
– particulate matter and fluorides – the sponsor of the project simply assumes that emissions will be
equivalent to the norms proscribed by the Orissa State Pollution Control Board.15
13
BREF for the Non Ferrous Metals Industries, page 333.
EIA, page C5-14
15
EIA, page AVI-2
14
This assumption is completely unwarranted. For example, the EIA provides no information about
how particulate matter emissions would be controlled from the captive power plant, which would be
the principal source of this air pollutant from the overall facility. Because the section of air quality
impacts is based primarily on an assumption of compliance with applicable norms, rather than on
emission factors from comparable facilities using comparable control technologies, the entirety of
the EIA’s air quality impact assessment is inapt.
4.2.
The EIA contains no health impact assessment
Chapter 4 of the EIA on Impact Assessment, Section 4.3.4 on Impact on Air Quality also contains
tables showing how the proposed aluminum smelter near Jharsuguda, Orissa, would raise groundlevel concentrations of various pollutants.
In addition to being inapt (see discussion immediately preceding), the analysis of the predicted
ground-level concentrations is incomplete. It is not enough to compare the predicted ground-level
concentrations to prescribed norms. It is imperative to go further: how will the predicted increase in
ground-level concentrations impact human health based on available demographic information?
For example, putting aside reservations about its accuracy, the predicted increase in ground-level
concentrations of particulate matter of only 3.1 micrograms per cubic matter may seem innocuous.
However, according to the World Health Organization and other international health experts, human
exposure to particulate matter, including dust and soot, causes the following adverse health effects:
premature death, respiratory illnesses, and asthma attacks. For each increase of 1 ug/m3 in
particulate matter in ambient air, health experts predict the following excess incidence of disease
will occur: 6.72 premature deaths per year per 100,000 persons; 690 respiratory illnesses per year
for each 100,000 children; and 32,600 asthma attacks per year each 100,000 asthma sufferers.16
These effects occur even when particulate matter levels are below prescribed norms. The EIA must,
therefore, examine demographic information to assess the extent of which these health effects
would be borne by the local population as a result of particulate matter emissions from the proposed
project.
4.3.
The EIA contains no vegetation impact assessment
Chapter 4 of the EIA on Impact Assessment, Section 4.3.4 on Impact on Air Quality also contains a
serious flaw with respect to fluoride emissions. It is not the predicted increase of fluoride in ground
level air that is significant; it is the predicted increase in fluoride deposition to land, and its
consequence on local vegetation that must be examined.
Damage to surrounding vegetation by fluoride emissions from aluminum smelters is a wellestablished phenomenon.17 According to a recent publication:
16
World Bank (1997) "Vehicular Air Pollution: Experiences from Seven Latin American Urban Centers," World Bank
Technical Paper No. 373, p. 34.
17
See: Doley, D. et al. (2004) Environmental Fluoride in Australasia: Ecological Effects, Regulation and Management
Clean Air and Environmental Quality, 38(2):35-55.
http://www.casanz.org.au/pdf/D.%20Doley%20CAS%20MAY_04.pdf
“Fluoride (F), recognized as a common gas and particulate pollutant, is emitted primarily
from industrial sources such as aluminum smelters and phosphate fertilizer factories.
Vegetation damage in areas exposed to industrial F emissions is considered to be caused
mainly by the emission of gaseous F compounds, in addition to the water-soluble fraction of
the aerially deposited particle-bound fluorides. Gaseous F uptake is carried out mainly by
the assimilation organs through the stomata, and under the same conditions as in CO2
assimilation; F dissolved in water on the leaf surface can be absorbed by diffusion through
the cuticle. In the present work, F concentrations in vegetation are estimated by the
statistical models using environmental parameters known to have impacts on pollutant
concentrations and to be readily available or easily accessible.”18
In this regard, the EIA for the proposed aluminum smelter near Jharsuguda, Orissa, must employ
accepted methods for assessing how fluoride emissions from the proposed smelter will impact plant
species in its vicinity.
18
Dimopoulos, I.F. et al. (2003) "An Application of Parametric and Nonparametric Models to the Assessment of
Fluoride Levels in Vegetation Exposed to Stack Emissions of an Aluminum Reduction Plant in Greece." J. Air & Waste
Manage. Assoc. 53:396–405. http://www.awma.org/journal/pdfs/2003/4/dimopoulos.pdf