Thursday 12th March 2020

(4 years, 1 month ago)

Public Bill Committees
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None Portrait The Chair
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Thank you. I will take two questions now. Perhaps the witnesses will decide between them who is the most appropriate person to respond in each case. I know that might be asking a bit much, but try and think about that.

Abena Oppong-Asare Portrait Abena Oppong-Asare (Erith and Thamesmead) (Lab)
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Q I want to ask about the respective contributions to air pollution made by road, air and sea transport and other emission sources such as energy from waste, incinerator plants, wood burning and ammonia from farming.

Bim Afolami Portrait Bim Afolami (Hitchin and Harpenden) (Con)
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Q Professor Lewis, I was very interested when you talked about the different chemical reactions and the effect of agriculture upon the PM2.5 particulates in the air, and how we should be fully aware that it is not just car exhaust fumes. Bearing that in mind, would you be cautious about putting into law something that the Government would not necessarily have control of or the ability to fully manage themselves, and might potentially end up as a big problem?

Professor Lewis: I can answer that directly now. You certainly would not want to put in promises to control things that are outside your control. There are things such as natural emissions. For example, there are chemicals emitted from trees that contribute to air pollution when they mix with other things. You certainly would not want to commit to controlling those.

If you are alluding to ammonia being an uncontrollable emission, I do not think it is. Ammonia is something that can be controlled. There are a lot of interventions that can reduce those emissions. There is probably a minimum level of ammonia that you would argue is uncontrollable, but we are way away from that at the moment.

On each of those pollutants and each of the ones that contribute to the chemistry, you do need to sit down and think very carefully about which bits are under your control and which bits are not.

--- Later in debate ---
Kerry McCarthy Portrait Kerry McCarthy
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Q Can I just ask a quick question about chemicals in the water supply and whether the Bill does enough to increase the monitoring of pesticides and other pollutants in the water? You are all nodding, but nobody is answering.

Ian Hepburn: It is not something I have looked at in depth, but certainly there seems to be concern—this is from other organisations that support and work with Greener UK—that there is a large number of substances out there that will be risky as far as human health is concerned, let alone the health of the environment. That will need to be regulated. I do not see within the Bill that there is necessarily the right framework to do that monitoring.

It is also probably worth touching on the fact that if one puts that responsibility on the Environment Agency, which has had fairly significant depletion of its resources, it may be that there is no capacity, even if you include that responsibility in the Bill, to get that monitoring done. I think that is something that we need to bear in mind when developing something that will help us watch these novel substances, both alone and in how they operate together in the environment, because they do pose risks.

Stuart Colville: I would just observe that regulators and the water industry itself have a programme of research into what I suppose you would call novel contaminants or novel pollutants within watercourses and water bodies. That is funded at a reasonably high level and will continue. In fact, the next round, between 2020 and 2025, is about to start. That looks at things such as microplastics, antimicrobial resistance and exotic chemicals that may be leaching into watercourses from various forms. I suppose the question is whether there needs to be some duty or obligation through legislation to formalise that somehow. My sense is that the current system, which is overseen by the Environment Agency, is reasonably effective at keeping an eye on those substances and trying to work out what is actually in the environment.

Chris Tuckett: Clause 81 of the Bill, which relates to water quality, gives the Secretary of State powers to look at the substances that are regulated through what is now the water framework directive. That is good, and we do need flexibility on the sorts of chemicals that are monitored. It is slightly different for pesticides, but it is important to adapt as new chemicals come on to the market. What we would say about that clause is that there should be absolutely no regression on standards. Those standards that are there should not be reduced in any way.

Stuart Colville: Just to be clear, we would agree with that.

Abena Oppong-Asare Portrait Abena Oppong-Asare
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Q There are a few requirements for consultation on water quality in the Bill, but they are only to ask the Environment Agency. If any changes made under this section of the Bill are subject to the negative resolution procedure, do you feel that that level of scrutiny is enough, or do you think it should be extended? I just wanted to hear your general thoughts on that.

Ian Hepburn: This is on clause 81?

Abena Oppong-Asare Portrait Abena Oppong-Asare
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Yes, I should have been clearer.

Ian Hepburn: It is an important issue. There is no overall requirement for non-regression, so changes could occur in either direction; they could reduce the standards and they could remove substances. We consider that that is highly inappropriate. There must be a degree of protection in there. We would certainly want to see a general improvement in the way in which any move to alter the substances or the standards is addressed. It will need to have specialist advice. There is an obligation to consult the Environment Agency, as you say, but it needs to go beyond that; it needs public consultation, and it needs an independent organisation like the UK technical advisory group—UKTAG—which currently advises on the water framework directive. That would need to be incorporated, and I believe it would need the affirmative procedure and proper parliamentary scrutiny alongside that.

Abena Oppong-Asare Portrait Abena Oppong-Asare
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You said parliamentary scrutiny.

Ian Hepburn: Yes.

Stuart Colville: I completely agree with all that. The clause gives quite a lot of power to the Secretary of State in ways that we cannot really predict, sitting here today, so we want to see a bit more structure or a few more checks and balances within that. The affirmative procedure is one way of doing that. Consultation and a requirement to talk to the experts are all helpful in that context.

Chris Tuckett: The scope of the water framework directive goes out to 1 nautical mile, so it goes into the sea. When you are talking about chemicals and where they are going, it is going to impact there as well.

Alex Sobel Portrait Alex Sobel
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Q The River Wharfe in my constituency and in Robbie’s has significant sewage outflows when it rains, with E. coli levels 40 to 50 times the EU bathing water limit. Only 14% of our rivers are, by EU standards, in a good ecological state. Considering that track record, do you think the Bill will improve the quality of our rivers? Chris alluded to this earlier, so perhaps she wants to respond.

Chris Tuckett: Absolutely; it needs to be managed as a system. The targets need to be there and need to bite. You talked about E. coli and bathing waters. To be fair, good progress has been made on bathing water quality, but absolutely, there are some exceptions, like the one you talk about. Stuart mentioned the temptation to use bathing waters year-round in different places—swimming in rivers and all that sort of thing—so the need is there, from a recreational point of view, to do more. The biting part of the Bill around targets is pretty crucial.

The measures around waste water management and the need for planning for waste water management are also really welcome. Obviously, Stuart will come in on that. For a long time, there has been a requirement to plan around water resources, but not around waste water management. It is necessary to plan ahead on that, and to understand what the volume of water is likely to be under climate change conditions. It will increase. Having a sewerage system that works and can cope with that kind of capacity is a big ask, but it needs to be planned for. So yes, I think there are things here that will help.

Stuart Colville: Perhaps I could add two things. I agree with all that. First, on E. coli, that speaks to my earlier point that the legislation is aimed at ecological outcomes, not public health outcomes, which is why that issue is there. For me, there is the long-term question to address—probably through the target-setting process—of what we as a society and legislators feel about that.

The second point I would make is that one of the principal causes of spills of sewage into rivers at the moment is blockages, and the main cause of those is wet wipes congealed with fat, oil and grease within the sewerage network. One of the things we are calling for is for some of the producer responsibility powers in the Bill to be used to do something about that. We know it is an increasing problem. It costs £100 million a year and it is a direct cause of several pollution incidents we have seen across the country. That is why we hope this framework will at least address that element of the cause of what you describe.

Ian Hepburn: You have alluded to the fact that we have not done desperately well in terms of achieving good ecological status for water bodies. In England, 61% of the reasons why water bodies are failing are down to agriculture, rural land management and the water industry. I believe that the Bill does a lot to address the water industry aspects; it does not seem to do very much on the agriculture and rural land use aspects of the pollution. Of the 37% of reasons for failure that are attributed to agriculture and rural land management, 85% are down to, effectively, diffuse pollution from farm land and rural land use. It is a big issue, and has been for a long time. We have not got around to dealing with it. We need join-up between the Environment Bill and the Agriculture Bill to ensure that we deal with that sector.

We have been talking about clause 81 and the need to have it framed in a way that does not allow regression. There must be a temptation somewhere down the line—not necessarily in this Parliament, but in future—to lower the bar because of the levels of failure. We need to resist that, and ensure that under the framework, that is unlikely to happen.